I also have a Northstar, and have the same experience with the fit and balance. It's a little small for my big paws, and doesn't quite balance to my preference. The blade, while a great cutter, is a little thick for me. I think it was intended to hold up under batoning, something I don't do often. That said, I have nothing but praise for the quality - superb. I'll look at the Aurora, as that may be a better fit.
For now, I love the Grohmann #3 and #4 in flat grind. Thin blades, light, good balance, and geometry, and well made "Skandi" style sheaths.