[4] The following year, 1957, he was picked for the higher level Swaythling Cup team to play at the World Championship in Stockholm.

[5] He competed at the World Table Tennis Championships, in the Swaythling Cup at six consecutive tournaments from 1957 to 1967.

This new material  enabled more, sometimes excessive, spin to be used and completely changed the game, greatly favoring more attacking styles.

[11] Harrison who had excelled as a  defensive player tried hard to adapt but never fully succeeded in making the change.

In addition, an increasingly busy personal life (he now had a young son) meant he wasn't able to put in the required practice and so Ian Harrison decided, whilst still at the top, to retire from table tennis saying "'Why did you retire?