Yep. I've tried 450+, Chad. You made a 450 string for my Kings Pawn, remember? It's better than D97 or fastflight, but B-50 still feels best to me.

For bows that have reinforced tips, I don't think the superstrings are gonna make them explode within a few years. But look how many 60's vintage bows are still going strong with B-50. It'd be interesting to see how many of today's bows are still shooters 40 years from now after being shot strictly with fastflight.