For handdrag 3's I only drag one hand, and actually try sort of not to cork it, cause I find otherwise I land corked aswell. When I do handdrag 5's I drag both hands and really cork it, this makes it alot easier.
If you check this edit there are a few, not all the steasiest but still, it might help a little.
https://www.newschoolers.com/watch/585664.0/Some-indoor-skiing-in-holland