I bought a 930 SPX after reading a few reviews and doing a hand's-on with another GC
rg member. For what you pay, you're getting some Very nice equipment.
I've only found two, very easily correctable faults.
One...There's no front sling swivel on the SPX. Solution:... The 930 SPX and the Remington 870 share almost the exact barrel to magazine tube relationship. Put on a front sling plate from an 870 and you're good to go. (Same with magazine tube clamps, btw)
Two...Federal LE132-00 Reduced Recoil Buck is my favorite shell. I typically get a 6-inch pattern at 25 yards from a cylinder barrel. Unfortunately, LE132-00 is about >.< that much longer than the typical 2 3/4 inch shell and you can only fit 6 in the magazine instead of 7. The seventh is less than >......< from fitting, but just a tad too long. After doing a search online for the problem I found someone on AK47.net had replaced the 930 spring with one from a 590 and was able to fit the 7th round in. I did the same and now I'm back up to 7+1 full capacity (or, 7+1+1, if you are willing to cheat a bit).
Fiocchi's reduced recoil buck gave my SPX a bit of a problem on it's last outing, but it was bone dry. I'm going to try it out again with a little lube and see if it still stovepipes. If it does, I may use full-strength Fiocchi for training and GP.