Sorry once again for the rotated pic. Can't figure out how to rotate it after attaching. Anyway, tacking together 5/32 mild steel fillet joint with 3/32 7018 electrode @ 93 amps. First off I'm not sure if tacking at the ends is the proper way to do this. I have done tacks both ways but like this better. Second, every time I tack at the end I get that undercut on the top piece. I have tried different angles, manipulation, etc. Too hot maybe? I tried lowering the amps but kept sticking rods. Input much appreciated.