[TowerTalk] Cadweld vs other welds or brazing

[N3AE]

I've been following this thread with interest. 

What's the proper way to bond galvanized steel anchor rods to the rebar cage to get a good Ufer ground? The UST specs specifically state not to weld the rebar (because they call out ASTM A-615 rebar, not the weldable A-706). 

My plan is to use bronze rebar ground clamps rated for direct burial for both the wire-tied rebar cage and the anchor rod connections, with #4 AWG solid copper wire between them and a bit of stainless shim stock between the clamps and the galvanized anchor rods (for the dissimilar metals problem - galvanized with copper-bronze clamps). All the above encapsulated in the concrete pour. 

Make sense? Are the SS shims overkill or even undesirable (compromise the tightness of the connection to the anchor rods)? 

Shawn - N3AE