I recently acquired a Proto Ringflash modified to use on Dynalite packs, but I just cant get used to using the ringflash and its too big for my style of shooting, I prefer to move around.
The Ringflash has been professionally modified by Flash Clinic in NY and I tested and works fine on my dynalite setup.
I am not exactly sure which model is it.. there is a sticker that says ‘Profoto Ringflash’ (doesn’t say Pro-7). I think its this one: