I am fairly new to racing and I can give some perspective as a newbie about the something that limits me and makes it harder to get into USGT.
1) The minimum weight requirement is actually something I care about and in my opinion makes it feel like I am less competitive. In my opinion you should be increasing the min weight, not decreasing. Something I struggle to understand is why you would want parity with ROAR instead of distinction (specifically around weight).
2) The approved body list is quite large in my opinion. I feel like there is a great selection to choose between, however I find myself limited due to weight requirements. I would be much more likely to choose heavier bodies if I didn't feel like it was such a stretch to keep my weight down.
While I understand the other posters in this thread stating that the best drivers will always rise to the top. My response to that is I am trying to have fun and be competitive at the same time... I don't want to feel like I'm giving up the fun part to be competitive.