You shouldn't have to add any extra BA or BB, numerous others got it working with the 3/10 percents.
How long did you heat it for, and how hot/warm did you get it? It really sounds odd that it would stay cloudy. Worst case, letting it sit for a little bit could help dissolve the trest.
On the note of it getting clogged in the whatman filter, where did you get your powder from? Trest is gaining popularity and being counter fitted in some places.
I personally haven't brewed any trest, I have done other powders, so the process is the same. I do plan on picking up some trest here soon. I'd make up a quick vial of it just to see how it goes.