There is one more consideration. I haven't checked to see if it is contained in the Manufacturer's Specs as was already suggested for tacks to be covered be other processes.
Here goes, FCAW-S (self-shielded) does not play well with others. While this is not specifically dealt with in D1.1 it needs attention.
It is however handled in the Seismic Supplement, D1.8, and is prohibited to be used when mixed with others. At least without PQR's and all the associated testing.
But, as D1.8 does address it, and, anyone who has done it recognizes the problems, it would be well worth one's time to check out the manufacturer's recommendations on this before just jumping in. If, that is, you will be using this as one of your processes.
Otherwise, just ignore me. Most people do.
Have a Great Day, Brent