Happy to help Sgt. Squeeze bags work great, but I think you'll like Dave's ABRs, which once married to a rear bag, makes for a much more stable and repeatable platform. It changed the game for me completely.
I don't have a protektor bag for the front rest, yet. I'm using the 5 axis front rest that came on my Rodzilla front rest, (picture attached) but I plan to change out to a sandbag front rest, but the 5 axis works really well, so there's no rush for now.
I do have 2 protektor bags that I use under the ABR and I'll try to post a pic or two, as these are key, as they just marry right up under the ABR. Shooting off of a bipod, I use the short one filled with heavy sand and when I'm shooting off a front rest, I just use tall bag under the ABR, as it turns my PRS rifles into a sort of modified bench rest rifle.
The last pic is the MPA rifle (in the middle), with the ABR on it. After that one, I got an ABR for every rifle I've built on a chassis, along with 2 foundation stock builds with an ABR. I have more chassis builds than stock builds, as cutting through micarta is tough and mounting these things to a chassis is simple. I think you'll like it and I hope it helps the shoulder.
Hope you have a Merry Christmas as well!