If I remember correctly, the higher-end models are 3D printed out of resin with some fancy German 3D printer. I think it's probably for BA positioning, since there are so many of them to fit.I don't get why BGVP opted to use plastic for higher-end models and aluminum for the DMG, the aluminum casings just feel right. Is it for sound/resonance/vibration or cost reasons?
I agree with you, I think the feel of the DMGs is fantastic. The Pinnacle P1s are also metal, and I like their fit and feel.