230 pound rider, 300pound 150cc scooter (touring frame)
NCY CVT kit also installed...
I have tried the stock 13g rollers, 10g rollers, 8g sliders, 10g sliders, and settled on 8+10=9g sliders.
last top speed check hit 65ChinoMPH and going (downslope), but I let off because rpms were well into the 8k zone. With 8g sliders rpms broke 9k, that's why I went back up in weight.
Acceleration 'felt' best with 8g. With 9g my acceleration rpm is a little less and I feel it up-shift sooner, but it feels like it could be just as quick and the lower rpms are fooling me.
It definitely down-shifts on the larger hills, WOT rpms go UP as the hill starts to slow me down. This (running 9g) is the first time I noticed this happening and leads me to believe i found my sweet spot. I would assume this is lighter than the norm, since I and my scooter are heavier than average.
I am very impressed with how it holds hills, and would be more than willing to race a stock displacement 150cc weighing 100 pounds less