Approximately five years ago, I had MG Arms build a lightweight Kimber pattern stock for a Ruger 77 MK II. Was less than impressed with the quality.
I did exactly the same & had the same initial result. Took it back & they fixed my concern post haste.
Have been very satisfied with customer service after the sale. One might say you shouldn’t have to need it. But, stuff happens & it got righted to my satisfaction. Have had issues with McMillan too. Was NOT happy with their CS.