I dont know, I just started curating in the last week so haven't gotten my first payouts yet. LOL
The advantage I saw to the change with LEO is in comments. People started doing a lot of more upvoting on comments since it didnt matter about finding the "best" (most upvoted) content. It did make the autovoters less profitable which may or may not be a problem on here.
Overall, it seems the Leo community is happier with the new reward system so it probably would not hurt STEMgeeks in the least. Give it a try for a month and see what happens. The worst scenario is it is changed back if people are not happy with it.