My last bottle was from Hobbytown USA. I actually mixed their thin with some of my medium from Woodcraft. To me thin is just to thin, so I thickened it up by mixing the two. The bottle I was using before that was from Wal-mart and it was some Loctite Pro CA. I haven't had any problems with any of them. Maybe you could explain your CA process as you do it now. I use Fangar's method and variations of it and it works just great for me.