I've been outshooting recurve archers with my second hand compounds for years.
I think that's the most important point here. We had our own dedicated field until last year. I shot C1s almost exclusively. I still think they are the best value arrow shaft on the market. Easy to shoot GMB scores with. I also had a set of Protours. They did not out perform the C1s even at sub 10 H/Cs. Maybe at 1400 FITAs they might have had an edge but I wasn't quite there. But there are far more Protours out there than there needs to be.... Nano Pro's and X-Treme, unlike an aluminium tube do not over time take a set, are stronger and you can buy replacements in singles. So why do we shoot Easton A/C shafts in the UK - because most of us have no choice.