Am happy I got mine done. As well as the tighter/snappier shifts and changes it also holds power when stalling it up, instead of holding some back then cutting power after a short time. Just had it tweaked it a little, but the main thing I'm happy with is that it locks it into 1st when stopped - no more taking off in 2nd which was a major bugbear for me - especially when pulling out of a street. Would have no power/wrong gear til about half way through pulling out round a corner then it would change from 2nd back to 1st and bring it on suddenly