I'll look in to higher quality therms. I'm using Hydrofarm right now and they are 1/0 for sure. I've had issues with foil tape, UTH, probes and the UTH peeling off so I went the hot glue route. I can't imagine a snake pushing the probe off and I check them at every feeding. Although corns are different than balls so I'll likely try the tape method again. Maybe more tape this time. The UTHs I have don't have the channel down the middle like the one in your thread and are pretty stiff. Or maybe I'll find a US dealer for something similar to what you used.