RE: high recoil lug issue...
I finally gave in and shot mine yesterday. I wanted to get behind it and couldn't wait any longer. The recoil lug is a touch high, I simply torqued the front screw as normal (hard), and put a very small/thin piece of plastic under the rear screw and only tightened it lightly. For the final correction I'll bed the front of the action torqued tight, and bed the rear with little to no torque on it. This should correct things. After hardening, this should provide a rear pad and allow me to torque the rear as normal.
Feeding/mag fit was excellent yesterday with the torqued front and light rear, which was my main concern.
Accuracy was excellent, though it was ~.3 mil higher at 200 than in the previous stock.
RE: the stock in use...
The grip design is excellent. Perfect.
I was using UM low rings. I need higher rings. Prone and "hunched prone" (~45 deg using different rests) were great, though I had to work to get my head down on the scope. End positions were very solid. Shooting with a .223 but essentially no muzzle rise. Even dialing up to 15x at 200 yards to minimize FOV, I could watch impacts. Nice.
I didn't shoot a single shot offhand. I had planned to but held off. For me, the stock is not a good fit offhand. I could get down on it but absolutely had to raise my shoulder up, and crane my neck forward down to an extent that it was a struggle. Higher rings will help, but for my build, the stock likely needs another 1-1.5" added to the toe. This is against the grain on the design of the stock for reducing muzzle rise, but shooting upright/offhand, for my build, it's needed. Except for positions that need less than 1-1.5" rear bag, I don't think it would adversely effect prone shooting as long as the shooter focused on seating the upper pad to shoulder.
From prone/forward lying supported I don't think I've shot anything better. I do need to bed to alleviate the lug issue. I likely need higher rings but may shoot it a bit more as is just to see. Looking forward to spending more time behind it.