in my *unscientific* research history the last few year the nx3 ball seems to be the most consistent. we have had hot batches and bad batches of other companies and have had balls better than the nx3 but they seem the most consistent quality use in our usage. they stay playable the longest, doesn't get the cover wear leather covers lose and have good life. decker dudley evils worths have been all over the place in our use.
if you could build a one piece a ball to wanted specs would that be the best route to go, or how else would you police the idea of provide your own ball?