I’m not a soldering pro, so while removing TexMex pickups from my road worn Telecaster, a couple of the wires came off easily with heat, but in one place, three black wires joined together, and nothing I did would melt the blob at all. I ended up basically having to just cut the wires. So on one of the pots is still a little ball of solder and wires. Can I just leave that there, and when I put a new pickups, just attach the three black wires with new solder in a new place on the pot? Thanks!