UV's V4 to G3, G3 to V4.

Angel

So, I wanted to try V4, with G3 mats, and Visa Versa. Is there  a way to quickly convert them?

RobotHeadArt

Some methods are discussed here https://www.daz3d.com/forums/discussion/comment/3997501/

Male-M3dia

There isn't a conversion method back to V4 itself, at least in a method to do it quickly. The methods discussed are mostly with the genesis models, generation 4 is older tech that couldn't use things like geografts.