Well, although I'll need to wait for better weather to test properly, I have been round the block. Mainly to give confidence nothing would fall off. I did a Dragy 0-60 test and the best I got was 5.33 seconds. There are lots of threads on here about lighter flywheels but I wanted to do a real benchmark test, so will report back with what improvement I achieve. I'll ensure I don't loose weight before testing again! All the concern about a rougher idle have been quashed, no change. I've only knocked off about 3kg of mass, I believe the Premier Power option includes a lighter clutch and knocks off about double that. Anyway, subscribe to the YouTube for updates, one coming soon on a slight rectification of a mistake I made (pointed out by a reputable person). Stuart