Thoughts on a quad stack coffin mag for the VZ61?

I have a buddy that picked up a VZ61 parts kit and as 20rd mags are the largest available for the 32 ACP variants, could a coffin style quad stack be viable.

The Sites Spectre for those familiar uses a quad stack that changes to a double stack within the magwell, and then feeds from a single stack. As it works reliably with 9mm and .40 I imagine the same concept would work with 32 ACP.

With that said quad stack magazines have heavy springs as the magazine is essentially seperated into 2 double stack mags internally so you end up with a split follower and a spring for each side.

Just wanted to see what everyone's thoughts are, I imagine this should be much more reliable than a drum while staying more compact. Have any of you guys attempted a quad stack design? If so what issues did you run into?