The M4/K4 mixer also works fine to mix K4/V4.

It's one of the most useful utilities I ever bought.

In PP2014 there is an issue, but it is easily fixed. "Follow Origins" is automatically checked on all converted clothing. To make them work in PP14, one must invert all 4 checkmarks in the clothing properties screen. "Include morphs," "include scales," "Match enhd points," mus all be checked, and "Follow origins" must be UINchecked. If you do this, the clothing snaps to the figure perfectly!