Tekmar TB-HV. Just right for me anyway. I never water it down however, with fresh paper we'll often apply two coats wet on dry. Lasts even longer. If you're still doing all those thousand black shirt runs it should work great for you. If you lose tack in the run we just run the shirts of, water scrub, quick flash, and back running. Just like the Garston stuff. Cept a lot cheaper 
I have tried to use WB adhesive for fleece and just cannot get it to work consistently. Having said that I have only tried to use TexTac brand WB adhesive (made by ChromaLine I believe). For tees we do water it down and it works perfectly, but for fleece I have tried using it right out of the bottle and apply with a scrub pad brush. I use a ketchup dispenser type of bottle to squirt it on and then spread it with the brush, so it is very evenly distributed. It works ok for a couple of rounds of hoodies, but then it starts to wear down and scrubbing it after every 2-3 hoodies takes a ton of effort. I need to get one of those drill mounted scrub brush setups. Im sure that would help.
Anyway, currently the only solution I have is using Camies 375 "Flash" spray adhesive. It is the only thing I can get to keep fleece down consistently. I am tired as hell of having to use spray tack to hold fleece down though. Its getting all over the press, the floor, and in other areas in the shop. I notice films setting on a table in the other room have are getting the spray tack on it. That stuff travels all over the shop, not to mention into my lungs. So your suggestion of this other WB adhesive is interesting to me. I wonder how different or better it is that TexTac. I may have to give it a shot. Looks like it costs about $20 more per gallon. Do you have experience with TexTac, to compare the two? I am really curious.
