I believe it would improve them. Lower blood pressure improves erection quality.
Despite the increase in cardiac output and stroke volume, blood pressure is decreased by 5–12 mm Hg during this type of weightlessness, suggesting, that there must be an immediate decrease in peripheral vascular resistance due to arteriolar vasodilation.
I wonder how zero G affects boners.
I believe it would improve them. Lower blood pressure improves erection quality.
https://academic.oup.com/ajh/article/31/11/1180/5078450#