I like Aim, I have bought from Aim, and will buy from them again.
With that out of the way, BS on the no canted FSB. I had to look through three or four before I came across one that was canted the least. Of the ones I looked at, they were ALL canted (some badly). The one I purchased had the least cant andI was not going to waste their time inspecting more than 3 or 4. I chose the best one of the four. It only took seconds to inspect each one. The counter person, however, was patient and willing to let me inspect as many as I wanted.
They also state clearly that all sales are final.
One coincidental thing that wrankled me a little was that they did not charge my friend that purchased just before me the "$15 background check fee". He did not even really inspect his purchase. When it was my turn, I quickly and politely looked at the few to check for bad canting (I was expecting some canting, not perfection) and I was charged the $15 or whatever fee. Apparently my friend was not even aware of the fee and could not remember ever being charged for it on previous purchases. Perhaps it was just oversight, I really don't know, but it did not sit well with me.
Still, Aim is my favorite place. :D
The one I bought shoots fine (but sighting it in was a little 'different' for me with the cant; windage first, THEN elevation) and the mags do not wobble. I am much pleased with it.
Just make sure you inspect for extreme cant. YMMV