I have seen it come up many times throughout all my reading. Having not done it myself I can't speak from personal experience but I would approach with caution.
A brief search has come up with this:
http://www.shroomery.org/forums/showflat.php/Cat/0/Number/4714757 <-------- many peoples experiences of lemon tek
http://www.shroomery.org/forums/showflat.php/Cat/0/Number/5316637 <------ this one will hopefully convince you in the first page
A brief search has come up with this:
http://www.shroomery.org/forums/showflat.php/Cat/0/Number/4714757 <-------- many peoples experiences of lemon tek
http://www.shroomery.org/forums/showflat.php/Cat/0/Number/5316637 <------ this one will hopefully convince you in the first page