i find myself using this more often, for various reasons. i like the driving dynamic of downshifting and it seems to recharge as well as braking. but i'm worried about the stress it might be putting one the cvt. downshifting an auto tranny will ruin them - i know first hand from my vw. so i'm wondering if there is a 'safe' speed for using brake assist? i get no answers from the dealership, but then again, they seem to know little about anything.