[20] The feud culminated in an eight–man elimination steel cage match on December 3, with Austin Aries, Roderick Strong, Jack Evans and Matt Sydal of Generation Next defeating Shelley, Jimmy Rave, Abyss and Nana of The Embassy.

His last appearance as a regular in Ring of Honor took place on June 24 when he managed Jimmy Rave and Conrad Kennedy III in a losing effort against the Briscoe Brothers.

[27] In April 2008, Shelley and Sabin returned to ROH, losing to The Age of the Fall (Jimmy Jacobs and Tyler Black) and defeating the Briscoe Brothers (Jay and Mark) on the 18 and 19 respectively.

[28][29] In August 2008, Shelley and Sabin once again returned to ROH, wrestling Austin Aries and Bryan Danielson to a 25-minute time limit draw and losing to Kevin Steen and El Generico on the 1st and 2nd respectively.

[33] On May 8 the Motor City Machine Guns were defeated by the ROH World Tag Team Champions The Kings of Wrestling (Chris Hero and Claudio Castagnoli) via disqualification, when the Briscoe Brothers interfered in the match.

In November 2005, he introduced a gimmick that saw him bring a camcorder (the "Shelley–cam") to ringside in order to film matches to study later for strategic purposes (in reality, Shelley owned over 200 professional wrestling videotapes at the time).

In early 2006, after both Aries and Strong were suspended by TNA, Shelley was recruited by Jeff Jarrett to obtain candid video footage of Jackie Gayda for the purposes of blackmail.

[60] A month later, on July 25, 2008, Shelley and five other TNA wrestlers traveled to Mexico to compete in the Consejo Mundial de Lucha Libre International Grand Prix, contested in a sixteen–man torneo cibernetico match.

Styles, Jay Lethal, Consequences Creed, Petey Williams, Eric Young, ODB and Chris Sabin formed a faction knows as The Frontline to battle The Main Event Mafia of Kurt Angle, Sting, Kevin Nash, Booker T and Scott Steiner.

[65] In the finals Shelley faced the reigning X Division Champion Sheik Abdul Bashir and Rhino in another three–way dance where the winner would receive a check for $25,000, and the loser had to wear a turkey suit.

[72] On August 6 the duo interrupted Daniels' backstage interview before his match with World Elite leader Eric Young and agreed to accompany him to the ring in order to get some TV time.

[78] Shelley and Sabin received their title shot on the April 12 Impact!, but were defeated by World Tag Team Champion Matt Morgan and Amazing Red, who replaced the injured Hernandez in the match.

[80] On July 11 at Victory Road the Motor City Machine Guns defeated Beer Money, Inc. to win the vacant TNA World Tag Team Championship for the first time.

[95] On December 5 at Final Resolution the Motor City Machine Guns defeated Generation Me in a Full Metal Mayhem match to retain the World Tag Team Championship.

[104] On the June 2 Impact Wrestling, Shelley formed an alliance with former rivals Beer Money, Inc., who were looking for a partner to replace the injured Bobby Roode in their World Tag Team Championship defense against the British Invasion at Slammiversary IX.

[109] On August 7 at Hardcore Justice, Shelley and Aries competed in a three-way match for the TNA X Division Championship, but were both unable to win the belt from the defending champion, Brian Kendrick.

[116] On April 15 at Lockdown, The Motor City Machine Guns unsuccessfully challenged Magnus and Joe for the TNA World Tag Team Championship in a steel cage match.

[121] On January 4, 2009, Shelley and Sabin defeated No Limit (Tetsuya Naito and Yujiro) at New Japan Pro-Wrestling's Wrestle Kingdom III in Tokyo Dome to win the IWGP Junior Heavyweight Tag Team Championship.

Kirsch unsuccessfully challenged Forever Hooligans (Alex Koslov and Rocky Romero) for the IWGP Junior Heavyweight Tag Team Championship on August 26 at a Sacramento Wrestling Federation (SWF) event in Gridley, California.

[155][156] On September 29 at Destruction, Shelley and Kushida defeated Suzuki-gun (Taichi and Taka Michinoku) to earn another shot at the Forever Hooligans and the IWGP Junior Heavyweight Tag Team Championship.

[163][164] Time Splitters received another title shot on May 10 at Global Wars, a special event co-produced by NJPW and ROH in Toronto, but were defeated by The Young Bucks in a three-way match, also involving Forever Hooligans.

[175] Time Splitters received a rematch for the IWGP Junior Heavyweight Tag Team Championship on January 4, 2015, at Wrestle Kingdom 9 in Tokyo Dome, in a four-way match also involving Forever Hooligans and The Young Bucks, but were again defeated by reDRagon.

[185] After defeating the Strong Openweight Tag Team Champions, Aussie Open on the September 15th episode of Impact!, Sabin and Shelley made their return to New Japan Pro-Wrestling at Rumble on 44th Street on October 28.

[187] On April 15 at Capital Collision, the duo lost the titles back to Aussie Open in a three-way tag-team match also involving the team of Kazuchika Okada and Hiroshi Tanahashi.

[196][197] On September 22, 2017, at Death Before Dishonor XV, the Motor City Machine Guns defeated The Young Bucks to win the ROH World Tag Team Championship for the first time.

[205] At Slammiversary on July 18, 2020, Shelley made his return to TNA, now known as Impact Wrestling, alongside Chris Sabin as the Motor City Machine Guns defeating the Rascalz after answering their open challenge.

At Bound for Glory, the Motor City Machine Guns lost their titles back to the North in a four-way tag team match also involving the Good Brothers and Austin and Fulton, ending their reign at 97 days.

Shelley was scheduled to team up with Sabin and Rich Swann to face Kenny Omega and the Good Brothers at Hard To Kill, but he legitimately had to back out due to "unavoidable circumstances", and was thus replaced in the match by Moose.

On the March 2, 2023, episode of Impact, the Motor City Machine Guns lost their titles to Bullet Club members Ace Austin and Chris Bey, ending their reign at 78 days.

[215] On May 26, 2023, at Under Siege, Shelley defeated Eddie Edwards, Frankie Kazarian, Jonathan Gresham, Moose and Yuya Uemura to become the number one contender for Impact World Championship at Against All Odds.