yes sliders do give some advantages . i use them myself.
the only draw back that i have found is that they
sometimes (rarely), in low speed all of a sudden they can
cause the scooter to feel like you just released a clutch lever
making the scooter lurch a bit when you take off from a stop or slow roll.
but its nothing to be concerened with .
gennerally aftermarket variators have a different configuration of the ramps
(where the rollers sit and travel) allowing for a quicker, more steep travel of
the rollers to get to the high range(they get into faster/sooner) , also some variators
are a slight bit bigger in dia. than stock ones.
oilyhans
i own a scooter shop with rentals ,sales& racing parts.
i also appraise scooters for KBB.
2003 Vino classic stage 0.75
de-reged stock variator w/8g sliding weights.
1.5k rpm springs
42mph
2005 veniceLX ~70cc~upjet~1.5k rpm springs & 7gr sliders
46mph
KeyWest de restricted~8gr slide