That was a rare MVP. Yeah, they were pretty solid, in general.
The one I’m thinking of was also an internal battery, and had a somewhat “ergonomic” shape. They came out with with a version 2, which was supposedly corrected, but I never tried it.
It looked almost like the what the Opus ended up being, a year or two later. This was was before the DNA20s too, but not by a long stretch of time.
I don’t know WHY I ALWAYS forget the name of that mod! Age. It’s a concept.