Several friends have them and like them. From what I have seen they are simple yet sophisticated designs with plenty of hand finishing. I have taken apart the SXS, but only examined the OUs assembled. They have a Boss like action with breech protruding locking bolts, bifurcated barrel pins and I would guess coil springs. The finish is way above the average mid level gun though.
Our importer offers stocks to measure at no extra charge.
A friend ordered his ribless, no engraving, stock to his dimensions, for woodcock. It is superbly balanced.