Haha, I just made a post about that in the B&D in reference to MGS wanting to try it. I think if you want to get pretty knackered from 3-MeO-PCP you should just dose a larger quantity all at once. I learned that the hard way as well, though I do find micro redoses okay, like .5mgs-3mgs for me. Usually bumps things up without turning on dat crazy siren that makes you want to do strange things. Also it's awesome when you have MXE to go with the 3-MeO-PCP as it can add to it without throwing you over a ledge as long as you dose properly. Works well since, at least for me MXE isn't anywhere near as manic as 3-MeO-PCP is.
I think some people just have some primal instinct while going hard while tripping that causes strong urges to take their clothes off.... Maybe it has to do with a feeling of complete freedom or something. All I know is i've never had the urge to "decloth" myself. Though once while coming up hard as fuck on 25mgs of 2c-E and 150mgs of awesome MDMA I got hot as fuck, become drenched in sweat, then threw up hard as fuck in the toilet. It was one of those awesome vomits though, where before your all like "Ehhh i'm feeling alright but something is just blocking that awesome energy I should be feeling...", then BAM you projectile vomit, and then your like "FUCK YES I'M READY TO FUCKING PARTY!". After I came out I just took everything off and stood in front of a window air conditioner for a bit and it felt amazing. Also one time my friend totally lost it one five or so hits of premium LSD, started doing very strange things like wedging himself between my mattress and box spring, and he just kept saying "WHOAH EVERYTHING IS TOTALLY FINE HERE! TOTALLY FUCKING FINE! LOOK I"M MOVING AS SLOWLY AS POSSIBLE, I'M ALMOST IN SLOW MOTION SO EVERYTHING IS COOL, NOTHING AT ALL TO WORRY ABOUT.". I think he was freaked out because he fucking knocked my nearly brand new xbox 360 on the floor as well as ripping his cigs up, and rubbing them into my carpet amongst other things. I was on 25mgs of 2c-E and 30mgs of 2c-I, so I lost it a bit and told him if he was going to fuck my shit up I would fuck him up if he didn't cool it, I didn't really mean it since he couldn't really control himself but I hoped it would make him calm down a bit which it did, got him to stop messing up or destroying my stuff. So he started going "slo mo" so I guess he didn't seem like a threat. He also would tell me everything he was going to do beforehand. Then he took off all his cloths and stopped talking completely, then re wedged himself in my mattress. The greatest quote from him that night was, "LOOK MAN, I'M GOING SO SLOWLY SO EVERYTHING IS COOL HERE, LISTEN I'M JUST GOING TO SLIDE OUT HERE AND THEN BAM WELL NEVER SEE EACH OTHER AGAIN AND EVERYTHING WILL BE TOTALLY FUCKING COOL!". I couldn't stop laughing because what he wanted o "slide" out of was a high window. So I said, "Yeah.....we wouldn't see each other again because you would be dead from falling out a window.", he just looked at me with deer in headlight eyes.