well i think this has run its course... technically only one is an RC, 5-IAI, and it hasn't been well received by those who've tried actual 5-IAI, aMT was an antidepressant, DXM & Tiletamine have pretty "blah" reputations among the masses, but some people like them quite well. Just go to the PD index & check out the big & dandies on said substances, the erowid vaults on them are also good sources of info. And lastly, don't post a vendor's product list & ask which one to buy, even if its worded ever-so-slightly indirectly