If it takes you 1000's or even hundreds of orbits to map with ISA, you need to change your orbits. Also, make sure you only have one mapsat part on your craft, as that causes issues. Otherwise it still works great for me in v0.19.1. That being said, it IS always great to have more choices and ISA hasn't been updated in a while. And you are learning a valuable skill at the same time. Good on ya! As for suggestions, make the map zoomable if possible, maybe with a bookmark system of some kind for easy reference to good landing sites for convenience. Also, maybe talk to the kethane guys and see about integrating kethane scanning, too, I guess. I look forward to giving it a try when you release it, whatever features you decide to implement.