They are made by Custom Archery Equipment (now called Oust composites, IIRC)...all the Cabelas pultrudeds are/were

CAE made a good arrow years ago, now I'm not sure. I talked at length w/ the owner back in 1995 or so...basically the Mavericks are a "thirds" grade shaft......Cabelas did have one grade better, but cannot remember the name now...

It's a filament wound shaft...actually not pultruded....this makes them a bit more brittle compared to the old Beman Hunters, AFC pultrudeds, Easton PCs, etc...

I never used/tested that spine, so I cannot say for sure, but the 230/2300 AFCs (CAE spines/sizes were similar I guess to be competition to AFC back then) were about a .420 spine...I shot the 230 CAE Pro Selects one season and they were similarily spined...so I would say the 220's are probably around .470-500...possibly even a .520 spine..which may actually fly better out of your X200...but hard to say....

def worth giving them a try....I really wish pultrudeds were still being made...good ones were great shafts and generally of much better quality than most of the carbons we have today, and the penetration is just tops (hence the resurgence of the small diameter carbons from Easton/Beman..they knew how good the pultrudeds were for that)...just the outserts were a pain in the @$$, and the nocks made it hard to get fletch clearance...a moot point w/ todays drop-away rests or a traditional bow.

You may be able to get some offset/helical on them....I could get a mild helical on my old 2300 AFCs...so it may work...you should probably try 4" feathers instead..or 5" in an offset..