In the comment section of a previous Roll to Advance post, I left a little sentence hanging at the end that spurred some further thought on this system.
"I hope it reaps rewards regardless of decoupling individual successes and rewards"
I guess I didn't think through this particular implication. This system effectively removes the link between risk and reward since experience rewards are static. I can't believe I missed this before. Why take on any risks if the experience rewards are the same for smacking some goblins or taking on a frost giant? Penniless squatters would be worth as much experience as the richest bandits.
Just completely wrong.
So for now, roll to advance experience is out. If I can reconcile this issue, maybe it can make a comeback. Until then, it's back to regular experience awards for hit dice and gold pieces.