Well, if they are live tracks, then they're probably ok, but I ain't one to incurr the cost either... But yeah, if I needed them, I'd probably go that route.. I need the tracks to operate in order to get the best look, on the diorama ground work, from operating tracks..
Lots of military vets here will pull no punches in pointing out errors regarding AFVs- they are used to the "hot wash" after action review.
Ditto.. Nobody really takes offense to a comment like "That track's more ate up than a football bat" if they've actually lived in, on, and around AFVs... Whereas very few modelers here are World War Two fighter pilots, there's a LOT of former DATs here (Dumb A** Tankers) and that kind of " 'tude" isn't an insult... Not as long as there's information from the person doing the "insult" from his time living in them, and preferably accompanied with detail photos and labels for the parts being critiqued...
My personal experience is largely with M101s, M102s, and M109A3s, along with FAASVs and M548s, and wheels including Humvees, M151A2s, M35A2s, and CUCVs, both M1008 and M1009.. So have no compunction whatsoever about correcting a certain area of a guy's build and wi;; supply him with detail photos and those photos will have the areas in question highlighted and labeled..
Something as simple as the stowage of the donkey d ick for the M101A2 while the gun's in firing position, or pointing out that the red and white posts are NOT what the latest AFV Club M2A1 105mm howitzer reviewer called, "Ranging Rods"... *Gag* They're Aiming Posts... Don't make stuff up if you don't know.. Google the gun's TM and look in the BII (BAsic Issue Items) section... Also, if the gun's in firing position, the gunner's sight is ALWAYS perpendiular to the ground... It's gotta be straight up & down regardless of the angle of the gun tube. (And, while we're at it, that ain't a "Backwards Spotting Scope" on the left front of the guns position.. It's a Collimator...)
But overall, the "skin-thickness" of both genre's builders are about the same, relative to their genre, that is, if you're trackin' me...