I'd really like to try an A cat main on my HT, but it's an expensive carbon mast, don't want any surprises. Foolish to try?
You wont break the HT mast with a Acat main. That Riba mast is plenty strong. If the mast track flex's and the bolt rope pulls out, add a 3-4 layers of carbon to the spot where it pulls out (if it does)
Bill
