So I made a post about this earlier, and both sides had some compelling arguments. You can check out the discussion here.
https://forums.ashesofcreation.com/discussion/46323/should-character-weight-be-a-thing-in-aoc
Towards the end of the discussion, I realized that letting character weight affect jump/roll distance was probably going to cause a lot of issues.
But what if character weight impacted your jump/roll speed instead? What if you jumped/rolled the same distance, but you did so at moderately different speeds, based on the type of gear that you're wearing?
I'm talking something like a 15-20% difference between each gear type. So light armor will be 15-20% faster than medium armor, and 30-40% faster than heavy armor.