So here are my observations. Let me start by saying these are NOT complaints, just how mine is...
Overall fit is ok. I'll say acceptable - because I hated the skeleton stock so much and love the ACR stock. Top of adapter does not line up well with receiver (0.5mm low) and stock seems to be offset 1mm to one side (left). The screws that came with the adapter only allow one thread to catch when swapping over the sling mount. OEM screws too long to use. I'll have to get some new ones. Folding the stock does not allow unobstructed trigger access. I doubt I'd ever shoot like that anyway.
Finish is high quality but fitment on "MY" XCR is not the greatest.. Regardless, I consider it a winner and commend both leemajors and navalbeaver for their respective excellent customer service. I am quite pleased with the final product and end result..
I'll post pics later