Kradie I watched your replays and I found big rr with bounce to be very little to zero punitive. I don't think we want that?
Kradie isn't a super fast roper though, he's not bad by any means but he plays on the safe side a little which isn't surprising considering he has played so much ZaR without parachute, he still slows down during a lot of moves instead of doing faster more risky moves.
The punitive part isn't noticed as much in falls. It's seen more by the way players will push themselves faster, doing riskier yet faster moves knowing if they fall they won't lose their turn and can keep going. However when you actually push your own limits to the extreme, you will fall more often until you get used to going at those speeds doing the riskier moves.
THAT is where the difference is noticed. That is where players competing at the highest level going as fast as humanly possible will be open to more errors. Every time you hear the "bounce" sound when you were not deliberately bouncing, it's a mistake, and mistakes slow you down.
Play it with me and you'll see a bigger difference. It shows this best when you are going top speed as much as possible, the faster you try to go, the more you will be punished.
If the goal is to limit punishment but still dish it out enough that those who are super fast AND fall less will still win, then rubberworm on with LDET enabled is the best option for specific reasons.
The best part about rubberworm though, something nobody else has even mentioned yet. It actually opens up more move possibilities by deliberately bouncing off walls to do moves that are impossible without rubberworm, you've got to be very skilled to pull some of them off though, it's pretty cool!
So yeah, I've voted for Rubberworm & LDET.