I'd just put it in an ethanol solution. Unless you want to eat a fair amount of paper (which you'd need to for like 10 mg of 2C-P). Plus from experience, even drying on a horizontal rack the wires and cause fair deviations in the product on each square, so make sure to get a reasonably fine drying rack.
Well, I have done it right and his no problems and at no time observed that that the paper squares ever sagged. This is partly why it's better to use actual blotter paper (and the thickest you can buy) as it's designed to absorb and hold liquid.If the blotter sags at all, there will be more drug in the spot where it sagged. If you hang it on its edge, the doses will be stronger on the bottom. You have to let it dry perfectly flat.
It's a tricky thing, not even sure if we're allowed to discuss here, and I certainly don't know how to do it right. Just know that's why you need a rack.
spacejunk so you vaped 2c-p how was that