Today, Me and another forum member, Nigel, had a chance to run our 2001 Swings side by side in a drag off. His bike is stock in the variator/clutch department, mine has a V4 Hit clutch and 26g sliders.
Run 1) Me on mine, Nigel on his. Flat out up to about 70mph
Mine got a faster start and pulled away to about a 50yds lead, then held the gap.
Run 2) Same combination, same result.
Run 3) We switched bikes. Nigel got away faster on mine, took about a 30 yds lead, then held it.
Run 4) Same combo, same result.
Conclusions:
We estimated that I'm about 45lb lighter than Nigel, so thats why the difference in the lead gap.
The sliders/clutch do make a difference, especially at takeoff (as expected) but once in "top gear" , there is no difference in performance (as expected)
My Hit clutch was installed with the springs fitted as standard. Nigel pointed out that there was a little clutch judder, which I knew, so I will be changing the pillow springs soon to rectify that.

I hope that after I fit the 21g or 21/26g slider combination and pillow springs, I get a chance to test the set-up again, as it's much better than guessing or imagining a performance improvement.

Thanks Nigel, I enjoyed meeting you and having a little play!!!!!!

Ian

Thanksfor the write up Ian. Nothing beats a head to head comparison. I look forward to the result after you change the weights.