I've not only tried the Model PJ set, I made recordings comparing the Geezer P and Model P

They're normalized by Soundcloud so you really can't tell how much hotter the Model P is but it is. Tonally, the low mids are way hotter in the Model P, the upper and mid mids aren't quite as prominent and even as the Geezer, and the high end isn't as bright, although I wouldn't call the Geezers super bright or anything. I do like the Model PJ's for certain things, but if I could only keep one set, it would be the Geezers. Here you go: