Perplexed - black tank treatments

Ok, I've done internet and forum searches. I need education.

Biodegradable chemicals are not obsolete.  We use Thetford Aqua Kem.  Two things are important.  You want to eliminate odors and you want to dissolve toilet tissue as best as possible.  We found that  toilet paper not dissolving is the biggest cause of clogs and failing idiot lights.  Biological agents are slow to work and need to stay around in the tank awhile.  And we found they do nothing to break up toilet paper.  We also empty black tank as soon as we get 3/4 full, which for us is not long enough for the biologics to work well.  So we use Scotts 2 ply RV tissue (as it is cheap and dissolves fast) with the Aqua Kem and have few problems.  We still get clogs and have to use a magic wand directly sprayed into the toilet to really clean out the tank.  Usually middle and  end of season.

I for one do not like the Tst treatments. I think those are meant for short trips, and you definitely  dump. I think they say 7 days right on it. If you plan to go longer than 4-5 days, I find the Thetford Aqua kem to be pretty good. I can go 5 or 6 weekends without dumping if need be using Aqua kem. Sometimes camping late September, thru October it's harder to find dump stations. I don't know much about these other products mentioned, but I know the Aqua kem works good.