IMO I dont think a build off proves anything, shafts need time to be fairly judged, lots of time(years and 1000's of hours of use) to really judge them. I have some Gus shafts from the earily 70's that nobody alive right now could recreate, thats just one case. Wood needs time to blossom like a flower.
On technical stuff then a build-off might be something worth while. But I have seen pleanty of bad shafts from top cue makers and the other way around. Its not fair to any cue maker to be judged by a shaft or 2, and might be bad biz for any cue maker to get involved in do for this reason. I'm not trying to piss on the parade but there are other competitive things that might be better. Like who has the coolest puppy. who can make the smallest inlay? I dont know, but shafts are like wine it takes a long time to really know. I have had shafts do funny things after a few months.
A good shaft with a few years play on it and not sanded or had a pad etc used on it is priceless when you find a good one. Guys who use pads, abrasives etc will never know as they ruin any shaft over time .
A shaft fresh off the lathe dosent prove anything IMO. Play 2000 hours and then see what you have-if you can play that long with a shaft and you dont ruin it to me thats a shaft that you cant put a price on, its the one that $$$ cant buy. You gotta earn those shafts the hard way and TLC-lots of play. IMO. Nice and black, oily, and well used with the origonal taper, then you got yourself a shaft. All new shafts feel new for about the first 200 hours anyways perhaps a bit longer, I kinda time how many hours I put on a shaft, up to about 1000 then I stop counting-its a rough estimate probably a 20-30% error in time. But After about 1000 hours they seem to settle in and dont change much for me, and I'm used to them. I have just a handful of shafts with that much play, I adjust to them very fast as i'm used to them.Alot of shaft get to 200 hours and i'm done with them, they start to feel different, dont stay straight etc when they are green. The older the better too.
I have some old Gus shafts that have hit a million balls (I didnt do the work) but there is something about a well used shaft that new shafts just dont have. IMO.
I speaking about old school maple shafts, not "Sporting Good's" or "Manufactured" shafts, I havent put enough time into them to have a opinion(i keep the pie hole shut when I dont know, I dont BS or make things up when I speak or post), i did talk to one top Predator player who said his Preadator shafts "Get soft" after a year, he had some old retired ones with him and I did agree they did feel softer after a good bit of use. We were using both the old and new on the same butt and he was 100% right, he plays much much better than I do. I do notice very subtle or in this case not so subtle differences in cues, shafts, etc. I think that all the glue lines in the preadator shafts weaken over time, he pounds the balls harder than I do and I see the shaft flex-that flexing when you have multiple surfaces cant sustain the rigidity that a solid maple shaft could IMO in Butterfly cues where the glue lines arent straight then the cue gains strength and rigity-different topic(correct me if i'm wrong)
I dont think a build off proves anything