Gear Vendor OD Blues RE: 73 Duster

I drove Mike Musto's Charger with a GV and was not impressed. It felt to me like it was half-overdrive making it not worth doing in my book.

Absolutely. If you are happy with a meager .78 overdrive, okay… if you already spent big bucks on the transmission and converter and don’t want to spend a bunch more on a 500 or 518, a GM 200 4R, okay but know that with a GV, you’re only reducing rpms by 22%.
Also, the concept that you are going to split all your gears by shifting it in and out and making the car accelerate harder is far-fetched.

The “gear splitting” talk is bullshit unless you’re talking about big rig trucks hauling heavy loads. No man alive can switch in between gears and also go in and out of overdrive in each one. It is a point they add as a sales pitch to sell you more on the product when 0% of the guys with cars will be able to take advantage of it.
This company sort of reminds me of the guy that was a star High School football player but now he is 60 and hasn’t done anything since. GV took a product, made a few adapters and have been relatively unchanged for decades. You may not mess with perfection but the GV has tons of room for improvement. How lazy can you be to stick to the same ratio the whole time ?