Mitch, are you using the PP more than your old WFO?
Yes, for certain. No surprise - it is why I bought it. 80-90% of the time, I bake just for my wife and me , sometimes our son. The heat-up time is very fast and the wood consumption is much lower. My FGM seems to "like" operating at 700 and operating at 800 + requires more diligence (and time and wood). I have been dabbling a lot with Neapolitans lately so that is part of it.
I think the heat up it is very much a quirk of the particular oven I have combined with the longer heat up with any larger, masonry oven.
I use the FGM when I feel like it and/or we are having guests (many more pies, more fun and the oven is super stable) and/or I want to cook other things in it too (appetizers and other dishes).