Health - Questions about SWIM's stack

[CorySpaceCowboy]

SWIM's current stack is:

5 grams- Lecithin
400mgs- Sam-E
120mg- Ginko Biloba (60mg extra at end of day on occasion)
25-75mg- DHEA (divided into 25mg doses throughout day)
Super B Complex Vitamin

The stack without the Lecithin has improved swim's mood and libido significantly. It has also made him able to focus much more and he has not became mentally fatigued a single time since starting the stack. However he is confused as to why his fingers have become very twitchy after adding Lecithin to his stack. Should he work up to a 5 gram dose, lower the dose, or divide the dose throughout the day?

Also, any other tips on modifying his stack would be greatly appreciated. (SWIM is already planing on adding piracetam.)

And is there anything about his stack, as far as health goes, that he should be aware of? And would it be safe for him to use Ritalin while on this stack?