Yeah, the body load was very harsh from TMA-2. TMMA-2 did not have nearly as much body load, it was much lighter like DMMDMA-2, although slightly more confusing (my thoughts were confused) at similar dosage levels (250mg).
My heart rate hit 120 bpm and the good visuals did not kick in until ~3hrs at 75mg of TMA-2, the body load was heavy, dancing was not really possible but sitting around and talking was lots of fun. At the time I had no realization that I was so high (in retrospect it become obvious). The confusion was absolutely PROFOUND. Still, it lacked the visuals I'm used to with good LSD. Pupil dilation was not as strong as what 100mg of MDMA does to me, although they were definitely dilated.
I've heard of a much respected bee who thought 150mg of TMA-2 was absolutely enjoyable. Not quite for me, but I'd feel comfortable pushing it further than 75mg. I'm not sure what route is best. I've been going after reducing the ketoxime made from a peracetic, but I haven't had much good luck.