LSD is an extremely powerful drug. I would take any studies that say there is no link between psychedelics & psychosis with a very large pinch of salt. I think perhaps there is a discrepancy here between causality & trigger. Whilst they may not cause psychosis per se, that doesn't mean they can't trigger psychosis in those who are prone. There are certainly many cases of people becoming psychotic after taking LSD which can't be a total coincidence so I would be very wary. It's up to you but you really are playing with fire. I'll admit the chances are probably slim you'll have an adverse reaction but it's a chance nonetheless...

Oh and by the way, APs will block the effects of LSD. They are commonly used to abort bad trips so unless you've been medication free for a while you'll get hardly any effects from the LSD.

And I'd agree with Junk... having a sitter with you would be a good idea if you decide you must go ahead.

I'm not trying to be a killjoy here... I'm just looking out for your wellbeing.