I have never had any sort of bodyload or stomach issues from any lysergamide, personally, least of all ALD-52. I get a twinge sometimes on the comeup of LSD, and ETH-LAD even moreso (still extremely minor), but ALD-52 felt more smooth than just about anything I've ever taken, smoother even than LSD.
Well I take that back, I occasional get some weird gas in my gut from LSD or AL-LAD. Once on AL-LAD it was quite painful for a couple of hours.