Here's some comparison shots between the U.S. Palm Ak30, Circle Ten Waffle, and standard ridge backed Combloc steel mags.
Overall, the AK30s are still my favorite and well worth the around $30 each I paid for them. The springs are strong, the magazine feels up to the AK standard of ruggedness, and they are lighter and better fit/QC than the Circle Tens. BUT I've found two minor gripes.
First Magpuls will come off too easily. Granted they might be a little stretched out from being on my Circle Tens, but overall they don't grip as well. Also the slanted floorplate either gives even less surface area for the Magpul to grip on or requires you to seat the Magpul further up the magazine making the loop smaller. Looks like I'm back to some duct tape, paracord sheath with zip tie inside for my AK30 pulls.
The second even more minor gripe is no witness hole for a full load. I'm so used to looking at that hole when I finish loading a mag, I've gotten lazy in counting how many rounds are in there.