Adding guitarist David Kindred and drummer Gary Hall, the new group, initially called New King Boiler, began rehearsing in Lillie’s grandmother’s basement in May 1968.
Merryweather performed at Thee Experience in Los Angeles on September 21–23, 1969 and appeared at Balboa Stadium, San Diego with Country Joe & The Fish, Poco, Chicago and Framework on October 12, 1969, after which Burt, followed by Hall and Roth, left to join forces with Rick James in a group called Salt 'N' Pepper.
Neil Merryweather reacted by flying to Toronto to recruit replacements (ex-Ugly Ducklings drummer Robin Boers and guitarist John Richardson from Nucleus - and before that Lords of London), returning to Los Angeles to record an album for the Kent blues label in early 1970.
In 1978, after visiting London, Neil Merryweather recorded the album Differences with British musicians including drummer Clive Edwards of Pat Travers and UFO fame.
Merryweather and Roth very nearly became the rhythm section in Crosby, Stills, Nash & Young but turned down the offer because Word of Mouth had just been released and they wanted to commit to their band.