If the loading wire is also an element truss I would be concerned about using such soft aluminum. John KK9A Bryan Swadener WA7PRC wrote: On my C-4XL, I use 0.0808" diameter 1100 aluminum wire. It fits the holes in the clamps nicely. I bought a 1 lb spool from McMaster-Carr for about $20 (pn 8904K85). vy 73,Bryan WA7PRC