My wrinkled, visually unpleasing stuff disappeared when I threw in resting the up to temp mould on a hotplate to "cool" Resting the mould on the hot plate keeps the nose section hotter for a mite bit, creating a better weld and better looking finished bullet. Yes on the two pots, but I usually dump the pure lead from the bottom pour. A bit of practice and a decent metering pot can work well.
Just shot another dink 2 weeks ago with a 50 cal./12 ga. sabot slug load
Worked like a champ. Went through the deer and several small trees. Never recovered.