I guess choline will only work in combination with Piracetam. If you are a healthy individual, your choline levels should be fine. People with memory disorder that are related to age, or people with Parkinson,Alzheimer's etc might be low in choleine. When I was in college (last semester), I use to get B+ in all my classes. My most common grade was an 87%, which is a above average. As a matter of fact, I garduated with a 3.30 GPA, which is 3 pts less than a B+ average (3.33) In my first three yrs in college, I tried to race my average by turning to smart nutrients. I have taken : DMAE,Ginzeng,Gingko Biloba, B-Complex, Huperzine, Brain PEP,Kava Kava, A,Phosphatedilserine,Glutamic Acid, Glutamine,Vinposetine, Phosphatydilserine,Phosphorus,and a lot more.I don't remember now. All these stuff has not work for me at all. They have given me either Headaches or state of confusion. Its funny, but most of
these so call enhancers have made me less able to concentrate. I think that the only one, which I can said its a good enhancer is Glutamic Acid. I increase my average to 90% with this one. The only problem is that it made me starter in Spanish and Portuguese, I don't know why. I speak three languages the just two just mentioned and English.
Out of the three I speak Spanish 25% of the time and English 75%. The problem with Glutamic acid is that is makes you nervous. I hope that the nootropics have a better result than all these sack of s h i t.

In my last year in college,I decided to increase my average by external enhancers. This is the main reason why I joined this forum. I think that Pring might work, but I just have no have the time to learn it. I'm dedicating my time to study for my CPA. Since Piracetam is very different from all the nutrients mentioned and most importantly it doesn't thin your blood, I think it would work.
If not, I'll be certain that there is no such thing as a Brain enhancer. At least not for me.