Thanks Jim , I have only soldered elctrical stuff before not this diameter wire. I will use your advice and do the warranty set before using as I am tired of hauling this to the lake with a chase boat and not flying. I think the wire is brittle Chinese metal like I have had in some cheaper arfs where you bend a pushrod and it snaps like a pice of glass instead of bends like metal should.
The vibration is normal Saito 4 stroke and not blurry at all when they pop. Its at idle as opposed to say, setting the high speed needle. If you look close the spot welds cover only aprox half the area of the parts that touch. They look like they could use a second or 3rd spot weld easily where the 2 pieces join.

Thanks again for all the good ideas, I will redo the joints and wrap up the wire bends a bit too for support, as once the wire broke at the bend, not the spot weld.

Horizon wants pictures before they warranty this. I find they are pretty good about product support but its a bit anoying to have to prove I am not misleading them.