If you're going to try DAA, get it now while you can. A patent was recently issued to the "inventor" of DAA, so shortly most products will dissappear, as they won't want to pay the royalties. Some will stil be there, but the royalty cost wil be passed to the consumer for sure.
Just get some bulk DAA, cheap and effective.
PrimaForce D-Aspartic Acid - Backed By Scientific Data!
That's a really good deal with the extra 20% off. I might grab that instead from my other regular supp store. Primaforce is good stuff. I usually go with 3-5g a day, either in the A.M., or before bedtime.