This mod is beast! There were some suggestions made that I also agree and encourage such as the anchor points issue but regardless, it is awesome.
I'd humbly suggest as well that if it could be possible to have a complex "walking pistons" mechanism in one single block, with at least two or three articulations would be something amazing to play with.
Although it isn't too complicated to achieve this with the pistons and swivels as they are right now though, but thought this sort of mechanism would be a next step on that direction.