I guess I just cheap...
I use a piece of coat hanger wire, shaped into two foward reaching arms about 14"long, each at about 45 degs. with 9" to 12" pieces of old cassette tape tied to small loops bent into the ends. The center of the 'V' is also a small loop, that I screw into a small hole drilled and tapped at the top of the mast. My first mast, stock untapered, the hole was on the very top of the halyard sheave fitting. New tapered mast, mounting hole is on the front of the mast where it will not interfere with halyard.
This masthead fly takes longer to install (1 min), but never breaks when it hits anything, easily bent back into shape, and it doesnt "Lie" by pointing somewhere when there is no wind
just my $.02 worth.............more than the fly costs.
phill