£10 for 100mg pellet? I doubt it, sounds like someones just taking the piss tbh!
If I had this i'd just do a tiny allergy test then do a decent 90mg dose or something. Whats the score with dosing so far, whats concidered a decent dose? With MDMA I usually go for around 250mgs.
From my last experience at 90mg, it was 1-1.5 hour from first effects to peak (ps first effects appearing now!), 3-4hour peak, and back to baseline at t+12. so its very long lasting off that dose compared to MDMA.