RE: overlapping headsails
Whoa! While this may be against R/C sailboat race rules, it is definately used for real sailboats. The configuration is simply called a cutter(I've sailed on one). Yes, getting the genoa accross can be a problem, but using roller furling( like a window shade rollup for the genoa) will help the genny avoid the cutter(sail) . You wold need a lot of servo throw to be able to roll up the genoa and back out again. While this may seem ungainly, it is a very good config for 'pointing' or sailing more directly into the wind. The added sail is literally an extra wing. Remember - all sails are wings; a cutter is simply a biplane( more 'lift' on the front of the boat is what allows it to point better). Sean