Dicktingle, What lectithin are you using? Thanks for the update by the way. I had Soy but switched to pumpkin to avoid phytoestrogens.
Maou, I don’t think it matters. Any L-Arginine is going to be pretty much as good as the next. I get mine at http://www.pipingrock.com/l-arginine because the prices are really good though I’m cheap about shipping so it can take about 2 weeks through the mail. I’ve found their products to be pretty good so far. You might want to consider getting L-Citrulline as well as L-Citrulline helps your body produce L-Arginine naturally.
I’ve also bought L-Arginine at GNC when impatient but only buy from GNC when on sale. Their normal non-sales prices are inflated.