They are very simillar in play such as the tricks they do, but not in other specs. The shape is different. DM2 has a nice wing shape feel, as you expected, but the Northstar has a small H-Shape. I don’t like the H-Shape as much because it seperates your fingers quite wider while throwing.
Northstar is a weight ring yoyo, having to be that because it has anodized aluminum rings on the side. DM2 is a Bi-Metal. 2 metal rings on each side of the yoyo. Some say they fall off, or they crack, but this isn’t too important unless you get extremely unlucky or you walk the dog on cement while driving in a Lamborghini at top speed.
Now, this factor just might make you choose one of them, do you like to grind? The Northstar and Protostar just plain fail at finger grinds, palm grinds. They play SUPER good in play, but I have to say, they FAIL in grinds. If you want to IRG grind on a Northstar, it’s possible, but the ridge is around 1mm wide. It’s going to be hard to pop the yoyo in the air and land it on thast 1mm surface. So overall, I do not recommend the Northstar (or Protostar) for grinding.
I find the DM2 to grind quite well. Not the best, but definitley not the worse. The metal rims make it smooth for Palm Grinds, moderate. Finger Grinds are O.K. but it doesn’t grind as well as metals because the Finger Grind Suface is a non-satined polycarbonate surface.
Now don’t get fooled. The DM2 is one of the best for IRG grinds. Thumb grinds. The IRG ridge is extremeloy large, actually there are many ridges. Your thumb doesn’t fall of so easily, like its really hooked onto the ridge here.
So do you like grinding or not?