Good, room for improvement

I spend lots of time in the back-country where an offline map is a must. This has been a fair solution. Here are my complaints/suggestions for improvements.
-According to the listed number of downloads, youre stopped randomly, often long before the stated daily limit.
-Marine areas are lacking -my experience being on Lk Superior and along the MN/Canadian border.
-Canadian lakes seem to be missing entirely -or theyre outlined in black but not blue.

desmion about Mapster