Haven't seen either one of those for a long time. Which is a shame..cuz they really are odd, unique, and fun di$$0$. And vaped diph was like di$$0 cr@ck.
Is0phenidin€ has recently come onto the market (or re-appeared?) ...but RC is the only place I've seen offering it. And I've never tried it. Probably won't get around to it either...I asked about it on bluelight and nobody really had anything great to say about it. Seems like it provides lackluster effects compared to €phenidin€ & diph€nidin€ and isn't very strong - making the price point its set at just too expensive for me. Especially when other, proven to be wonderful di$$0s are available.