i swear to god they used to work better. modern ones either send your cursor flying off the screen with a gentle nudge, or they barely move at all. it used to be people would hold onto the nipple nubs for extended times because they preferred the precision of them over touchpads. as touchpads have gotten better, nipple nubs have gotten worse. i’d probably point to 2015 when things all went wrong. i don’t know if the manufatcurers switched to a new sensor because it was cheaper or if the software / firmware / drivers that make touchpads good also make nipple nubs horrible