I found an interesting interaction between OFS and MFP.
If you place an mpv.conf in you’re %appdata%/OFS/OFS2_data/ directory with the following content.
input-ipc-server=multifunplayer-mpv
MFP will be able to connect to OFS embedded mpv player. 
I don’t necessarily recommend doing this but could be used to do quality assurance.
You can even combine it with MFPs Axis::ReloadScript shortcut.
Make edits in OFS save as funscript and quickly reload in MFP.