For years Mcdermott used Thomson water seal, They and most of the big manufactures have stopped using stabilizers on there shafts/cues for 1 major reason, most cue's are made over seas now, and it's cheaper for them to replace a few hundred or thousand shafts and or cues a year than to make the investment to treat there wood, or too let it sit for a long time. I've seen the factory that makes 80 percent of the cues from asia, 1,000,000 square feet building, upper level is nothing but pallets of wood, lower level is the machinery.
The big cue companies buy 100,000 shafts or more a year, so lets just say they get them for .50 cents, or maybe less a piece? they take 2 turns on every one of them, If one warps, so what, cost effective to do them quick and get them done,
Most my knowlege come's from my uncle who actualy has the first hand knowlege of seeing this building, and its goings on. Infact, My uncle told me that I could have all our b/js made there, for about half of what the parts cost me, all I have to do is install the tip, and sand the shaft. I was so tempted, but that's not custom cuemaking is it.