I would be very interested to see how the foam pad is working to remove OP as well! From a physical perspective, is it a stiff foam pad? As is my current understanding here, the removal of orange peel is best achieved by block flatting, because the paper remains flat and does not mould into to the orange peel like a foam pad will - therefore it will distinguish between the peaks and troughs in the paint finish and allow you to just knock back the peaks to the level of the troughs - ie, relevelling the paint. How does a foam pad distinguish between these peaks and troughs, as many foam will just lower to whole amount of paint and leave you with the orange peel only with a lower average paint thickness...
What are the equivalent paint removal rates: comparing removal of OP with block flatting and with this foam system?
Interestingly, I have found wool pads effective at knocking out orange peel, which for me flew in the face of my understanding at the time, to the point where I was studying the panel weeks after to look for fall back and was using any form of panel wipe I could get my hands on to see if there was fall back but the wool seemed more effective at knocking back the orange peel than foam for some reason - perhaps it is more able to distingush between the peaks and the troughs?