Are these things still for sale at large? I thought that cheap PMK-based MDMA pretty much killed the gray benzofury market.
I had most of benzofurans. I actually still have one I never got to trying and at this point probably never will.
Hcl salts of both when you could get them were good substances. Most people found that 5-MAPB was closest thing to MDMA. I tried it at the time when I was taking Hcl 5-APB/6-APB mix once a week or once every two weeks so next their prominent push 5-MAPB felt too gentle, even weak. But then I was never a fan of pure MDMA which I found too relaxing for a club dancing scene. As to 5-APB, I found it lacking by itself, but it was great in the mix that I described.