I've done the cool whip container method & you can't get very many bullets in there at one time but if you're happy doing it no problem. Actually if I'm doing small bullets like 9mm's or 357's I can do a lot more than 300 at a time, plus I get a much better coating. That's why HF paint does work & I've never had to paint twice. Again, if you're happy with the swirl method use it but a big tumbler works so much easier & the time could easily be cut in half, I'm just baking or sizing while they are tumbling, going longer doesn't hurt. No air soft pellets are needed either & there's no powder dust coming out around the lid. Also I double stack them on the foil, no problem, them come apart pretty easy if you rattle them a bit after cooling.
Dick
