Instead of mandating an Aluminum-mast tip weight, it would be better to either outlaw Carbon (the "level playing field" or "one-design" approach), or lighten the tip weight to levels appropriate for C (not Al) mast safety (the "safe innovation" approach). The F16 is an innovative class, which would be best served by the latter.
Isn't that pretty much where we are at the moment? The tip weight is already below that of a typical Alu mast, and based on limited information available, seems to be a little above what can safely be done with carbon.
