I would love to try all three personally. I have always found the 2CT-variants to be the most mescaline-y of the 2Cs. 2CT2 had some flights that felt indistinguishable from mescaline-shamanic animal spirits and euphoria
The lab they got the materials from is also responsible for synthing the current batch of 2C-B-FLY, as well as all the lysergamide analogues.
Makes you hold out hope that they'll release 2C-E-FLY to the public at one point. Though I wonder if it might be a bit too long-lasting with the FLY modification, seeing as how 2C-B-FLY is roughly twice the duration of 2C-B.
Perhaps but it's also more euphoric/friendly (although of course 2C-B is also those things). I am hoping it will be like 2C-E but also much lighter and warmer/more euphoric/friendly. But who knows?