Alan, with that lens, I think your best option is a smart MFT-EF adapter as you want to retain the electronic controls available for the lens. Metabones makes a smart adapter that should work very well. But always check the Metabones site to see if the lens has been identified and works well on their adapter.
I've also got a problem with this lens. I've got the Viltrox MFT-EF Adapter (the M1 version without speedboosting) for my Pocket 4k and I am not able to use autofocus or the stabilization on the lens (both activated). I updated camera and adapter, but the problem remains. Setting the aperture works perfectly, though. Is there something I can do or is this combination just not working?