I know what you mean, except with me it's writing. I also played beer pong while comin down (and drunk) from my last LSD trip, and I had the most amazing sick stroke. I haven't played since then, but I did discover that I'm fairly good at quarters. I would bet that it has a lot to do with other drugs, the flashbacks you're experiencing. I don't know as much about X, but it's my understanding that it's much more of a "feel" drug, whereas you could say that LSD is a "think" drug. Flashbacks like you describe are very uncommon in LSD experiments, and are more attributable to some sort of PTSD related issue, than to the drug itself. The most odd thing about this is that I have experienced small flashbacks myself, and realized that I had had similar feelings all my life - earliest I can recall is somewhere around 12 or 13, a feeling of attempted depersonalization is the only way I can describe it. Like my mind was trying to separate from the physical limitation of my body. Just don't get too spaced out, somehow keep yourself grounded in reality. Nothing would be worse than to learn so much that you can't apply any of it to what you're experiencing when not trippin.
damn i've tripped 4 times in the past two weeks. i guess its just i got the money and i got a solid connect. plus it doesn't scare me, im still functioning on the everyday. i feel like a grow so much on each trip. i think it just depends on you man if you can handle it or not.
I felt I could smoke pot every day without effect for more than a year; it's not always about how you handle it but about how it does affect you in a subtle way. I personally don't feel trippin is something that should be done often all the time - it takes time to learn from all the subtleties of a trip. In the past month and a half I have tripped about 8 or 9 times, it's definitely time to rest and think. Save your money man, it just means more for later - get some shit now and save it til later.