Well, this is a learning experience. I need to get finer wire, that is all there is to it.
I can pull the wire sooner, instead of waiting 30 to 90 seconds then. This was my first attempt in this method.
I did forget about one joint while I cleaned out my skimmer's collection cup, and realized it had been sitting 4 minutes, but was able to pull the wire out easily enough. That joint didn't pool out at all. So I was thinking maybe I should wait longer, not shorter.
I guess I shouldn't be thinking.....
Chiseling out the excess isn't a big deal, but crazing isn't a good thing. I hope that isn't going to happen with this one!