Philips in PZ screws is generally going to cam out like a regular philips head, just because you're not biting into the top with the PZ... triangle bits? I'm sure there's a technical name haha. So you can get by with that, a self-selected crappy philips experience when you could've chosen pozidriv bliss.

Philips in JIS screws is an exercise in anger management. IIRC, JIS has a much wider angle on the bottom of the drive, making it sink into the head less than a philips drive would, so it's a great way to turn your philips driver into an artisanaly-rounded single-hole punch.