No offense, I mean this genuinely if it sounds snarky.
Develop your own.
Xtol is a breeze, it's cheap as chips, and if you want more control over density, you've got it! Plus, I like xtol in general. If you can use it or find someone who does it is great. It makes a grain I find more pleasing when scanning negatives. If you're scanning at home anyway, the hard part about home hybrid is already handled.
That said, I never had problems with FP4 in Clayton 76, which I do at North Coast Photo. They're my local, I'm in there pretty much every week dropping off or picking up. And they're super nice people who really held my hand when learning both how to prepare for printing and when I switched to film. If you have questions about how or why they do anything, you can certainly drop them an email or call. I asked plenty of stupid questions, and I mean
stupid. I am not the sharpest knife on the christmas tree.
Also, they just use Noritsu scanners, like everyone else, and Noritsu are trash. Nobody charging these prices will have anything better, though. I've long since set up my own rig for anything that matters.
But, since we're talking about it, FP4, North Coast Photo, their scan, cropped for a CD cover:
Another of theirs:
Another
As I said, I actually much prefer Xtol for FP4 and do most of my Black and White at home now, but I have never hesitated to use NCP. They do my color and have done a lot of color prints for me the last two years, and I never think twice about giving them any film including B&W if I'm getting paid and need to get something developed in a hurry.
However, my scanned negatives might not be what you want in your negatives, so I really do encourage you to invest in a home setup. One of the better photography decisions I made last year.