I think the ipm would make a difference, i think chemo said ipm is a great solvent for yohimbine. Just so you know, i tried another bottle last night for the sake of this thread, added 6g yohim, 20ml iso combo, doubled the dmso (also a awesome solven, 10ml total), 24ml pg and 40ml IPM. Put in hot water for 15 min, took out and shook for a min then put in new hot water for another 15min. Added aloe to 240ml mark and it turned out perfect once again. Think i got it down pat, give it another whirl.