I'm using Mick Reeves, flat flying wires for my BUSA Pup as test bed for my Tripehound. Seen his site and how to silver solder them.

They are slick and look great. I found you need to be very close to final measurement as clevis only has about 1/4 inch travel on the threads. Word is the flat wire also stretches slightly after a few break in flights. I was also advised to upgrading size from his 3mm to 4-40 size clevis to be more robust based on three others who use them on their 1/3 Albatross or Camels.

Perhaps we just like to fly more aggressive or have heavier models. Will see.