I have thought about this quite a bit being a 'foot fan since the 90s. I would like to think they would around the 2xtreme Racing (Jimmy Creten) threshold, contenders but not necessarily winning everything. Would have loved to have seen Runte take a stab at Vegas before he retired. Swim, "Vinny" and Schnell would be solid stadium contenders, I think they would do okay in arenas but with how those shows have ramped up over the past year, I do not think they are that "footloose" with the stoppies and "skidmarks".
One can dream about seeing them running FELD shows again...