Oil Filter For 302 - Fl1a Or Fl300?

I always used FL1A, my 78 owners manual spec's FL-1, with 5 qts oil. However, every other resource (including Ford) seems to specify the short filter, Motorcraft FL-300.
I know either will work, wondered if there is some advantage to the FL-300 (other than clearance). Maybe better flow? The FL-300 is 1" shorter, so holds about 1/3 qt less.
What is everyone using?
Thanks!

Thanks! The black w/gold looks great, btw. I had a black & gold one myself, 30 years ago. A '77 with 2.8L, 4spd w/headers and duals (no mufflers, either).
But back to the filters, I called Purolator out of curiosity, and the tech line told me the shorter filter was entirely for clearance, no advantage.
I change oil often enough that I may start using the shorter filter, it is much easier to install.
The slight (.27 qt) difference in oil capacity is nothing, really.
Had to check my manual again because I thought it was weird that they changed the recommended filter number. And yes, the '78 manual does indeed specify FL1 for the 5.0L engine.
Guess they came with the bigger filter, and changed spec after people complained about the clearance? Who knows.