I checked out the matrix/DM grips and wanted to see how the hole pattern had changed. Here is a pic:
As you can see, 2 of the holes line up, but the third is off by about 2/3cm. I was thinking about tapping a hole so they work, but as you can see from the pic, the grips are too big. Same goes for Hybrid DM grips. They are made for a larger frame. The LEDs on the Quest are also much higher then a DMs, and they light up about 2/3 of the way up the grip.
At the same time, if you tapped a new hole then you could use Angel grips again.
I think I'm just going to wait until new grips come out.
At the same time, I got so tired of needing an allen wrench to get my hopper of, so I did a slight mod to my feed neck to put a Hybrid bike lock type collar on it. I just had to take a dremmel and grind off the top lip of the neck, and then the Hybrid collar off my DM5 feed neck fit fine.