I have used TB3 with only a few problems. it is cheap, easy to use, and works well, but it did give me some problems with boo to ipe. I tried URAC 185 because you don't need an oven to use it, and holy cow i love that stuff now. I didn't pay to ship it, i just bought it at a local wood store. 19 dollars but it was a 2 qt can. now the hard part is learning not to mix too much, as i was used to slathering TB3 on everything.