I'm happy that you like the 93P so much.
I just wanted to point out that an 18x20 string pattern racquet should have more control than a 16x19. The 93P has a slightly higher SW and a much higher Twistweight, so it should have more plow-through and stability, and the balance is slightly different due to the higher Twistweight (more material at 3 & 9 o'clock). Feel is a very individual thing, and therefore when it comes to this aspect there is no right or wrong, just the individuals' experience.
Just to be clear, I'm not defending the PB10 Mid (nor saying you're wrong), I just think to make a proper and fair comparison, the racquets need to be close in all parameters (if not identical). There is no doubt that Prince has done a phenomenal job by creating the 93P, and that those specs are very hard to beat.
Have you added some weight to the PB10 Mid at 3, 9, and 12 o'clock? If not, try it and then compare them. I would be very interested to hear your thoughts. The result may be the same (or not), but it's definitely something I will be testing out myself at some point.
Just my 2 cents. All the best