I'd agree that light loads will probably be acceptably accurate and a whole lot cheeper for practice shooting with a fast twist barrel but if you're going hunting anything bigger than a javalena stick with bullets; probably sabots. That said, the "acceptably accurate" more than likely won't be great. OK for plinking at stumps, cands & jack rabbits though.
Well I have an old renegade from the early 80's I shoot alot of round balls out of.It is a 1 in 48 twist.And my Omega is a 1 in 28 twist. I am not very accurate with the Omega and the round balls,but my renegade is with 80 grains of pyro.So I use it on varmits and target with ball loads.
When it comes to scent, there are basically two types; those that attract and those that mask. I've tried both on many occasions. There are lots and lots of "doe in heat" scents, designed to attract a big buck into range. I've also used a "cow in heat" scent while elk hunting.
Another scent would almost be better named as a "coverup smell". The main goal is to cover up human odor or mask it. Though I don't believe you can ever totally eliminate all human...