Yeah, man, that stuff'll crack you up!
I used to smoke weed but you know when you spend 1500 bucks on holosync and LSC - stuff and don't know how it will affect your results..; ie when I have the choice between superior brain power, serenity, peace of mind and WEED, I DO NOT choose the latter.
Yeah it's oh so much fun when you're with friends, and okay it's much better than smoking normal cigarettes, drinking alcohol or doing other drugs; but I forgot what I wanted to say .. oh yeah it really ****s up your short-term memory

Now well, I would say lay it off until you're quite proficient with photoreading and THEN you can do some serious testing.

BTW someone on the board once said that smoking weed really affected his photoreading abilities for days (if not weeks)

take care
Ste