I just wonder whether the current conservatism is any more justified. It stands to reason that if amo and IBO are willing to essentialy stand behind 6 or 5 grains for every modern bow, there is some bow out there that can do 4.9, maybe 3.9.
I agree - but for how long, and IMO HC doesn't have the bow.
even the best engines in the world, you redline them every shift, and they will break.