My thoughts:
Firstly, this is not meant to be an asskissing post, but I will say I support Macro, Ulter et al because thusfar they have been pretty fucking honest and fairpriced.
(well ok I swear yohimburn used to be 59.99 not 69.99 for the big one =p )
AF/MP Tech is pretty much the only supp company I dont think is shit anyway, at least they put out hardcore products and dont bullshit. I am very much looking forward to trying yohimburn soon on my face and abs. (will post results)
Now, when it comes to r-ala vs. racemic. I just turned 20, I have tried kilosports, nutriteam, BAC racemic and of course AF r-ala. I feel the nutriteam is the best racemic ALA judging just by the pumps I got from it. From what I've read I feel that if your goal is 100% pure hardcore bulking not concerned about added bodyfat from the increased insulin than perhaps the racemic is a better choice. All other times I would vote for the r-ala. I have been using it for about 5 weeks now I think and I've steadily lost bodyfat whilst preserving muscle coming off my cycle, I am sure I've lost at least a 1% bodyfat in the last week and a half since I changed my food intake and upped my r-ala dosage.
Another thing I noticed about r-ala is that if I take 400mg before my morning meal, (150 grams potato flakes, lowfat cottage cheese, whey) than I go into hypo and get very sleepy and shaky ... this would not happen even at 900mg of nutriteam's.
I cannot comment on the distended gut factor because I was genuinely eating over 7,000 calories a day including a gallon of whole milk which will make your gut puff out to the moon.
The anti-oxidant factor, who knows? But I assume r-ala is better from the studies.
Now even though I am 20 and I am sure I have a good insulin sensitivity to begin with because I'm naturally lean, I have seen a big, worthwhile ($$) difference with both ala's in terms of pumps and muscle hardness.