the standard tmax rollers are weight each 19 gms and there are 8 of them making 152 gms total, not sure on the weight of the dr pulley weights you had in the standard variator at -10% say you had 17 gms each it still total 136 gms which is way of your polini 99.6 gms
thats why its more revvy the blue spring is stiffer than standard, its behind the rear pulley surface plates where the belt sits inside, so the belt finds it more difficult to sit further down inside the pulley halves. at the opposite other end is the polini variator which because it is slightly light so its struggling to open the rear pulley. so the belt at the rear stays higher longer , so at the variator side, the belt is staying lower, longer giving you high engine revs.
this shows it working, look at the plate movements
you have choices,
if your polini package came with any more rollers say 9.5 gm or 10.5 gm rollers
or
dr pulley do rollers to suit the polini variator, http://www.drpulley.info/shop/index.php?cPath=47_68
but that costs more money
depends if you want to keep the polini variator.. hope my crap translation is readable,
