New Hack...

I went to a 2:1 since I found my Sunfish more tiring in heavy wind than my Hobie! I have a Harken mini block shackled to a spring clip that slides on the dyneema traveler. Also I use a clove hitch on my sheet behind the boom block (instead of tying it into the boom block eyelet), so the line runs free. It prevents the "double-X" too.
This business about having to use 40 year old parts to be class legal is just silly. Should be "equivalent" parts.