Honestly, I have moved away from the SW mounts, because they are predicated on using a 14.25" LOP stock, which is absurd unless I'm using NODS, and then it helps me get my face off the gun, as well as having more built in height (due to the 15.5* slope of the recoil tube and the stock's movement along it). I prefer a C-stock run at the mid setting, which is in the goldilocks zone for 5'6"-6'2" or so people, of about 12" LOP. Under NODS, I will extend it to 14.25" for the room off the gun as well as to "increase optic height". When you run an SW mount, though, it puts you too low for a 12" LOP with the C-stock's cheek-weld. What I have moved to is proper 1913 rails + ADM Ti QD mounts. This is perfect on the 12" LOP, and a bit high (but not bad, it equates to about 2.1-2.2" optic centerline on an AR15) fully extended C-stock, which is PERFECT for NODS and passive aiming. Or just a heads-up position if that's your thing without NODS.
Also, just chill on adapter plates. I keep hearing nothing but bad about them from the handgun guys. Keep an eye on SW if that's you're thing. I doubt they ignore the P2.