Folks,
I haven't had much time to follow-up on this (work and real life keep intervening), but I have determined a few things:
1) Using the Gorn as a reference, the BPV values in the original shiplist.txt and the OPPlus 4.11 shiplist.txt appear to be the same, in particular for the 5 main types of PFs (INT, PFS, PF, PF+, and PFL). I've checked through my directories and compared several versions of each, just to be sure they were all the same (I made backups at several points before installing various mods). This appears to be the case. This result would suggest that the roll-over text for the UI is not linked to the BPV, at least not in the same way that fighter shuttles are linked.
2) Assuming that the numbers for the OPP4.11 shiplist.txt were the starting point, I wonder if changing the BPVs in a way similar to the fighter shuttles would be a valid fix anyway. To get the UI text correct, I had to roughly double the BPV of the fighter shuttles (per squadron of 4, Hydran Killer Bee III went from 20 to 36, while Hornet III went from 28 to 56). Assuming that we had to apply the same process by scaling the BPVs upward, a squadron of Gorn INT (26 each) might increase from 78 to 156 while PFL squadrons (53 each) might increase from 159 to 318. That would make the cost of a PFL disproportionate to its actual combat effectiveness. If, on the other hand, we scale the BPVs DOWNWARD, then PFs almost become more cost effective than fighter shuttles, which is also disproportionate to their respective combat effectiveness.
Now, I don't know as much about the innards of the code as some of you do, so maybe I'm missing a key item here. However, it seems to me that using altered BPV numbers to "fix" the UI for Fast Patrol ships is less practical (and less cost effective) than for fighter shuttles. Due to time constraints, I haven't tested any altered BPV numbers in-game yet, so I would still have to try this to get actual BPV data (assuming it works that way).
Sorry I'm slow on this, but I hope the analysis so far helps to clarify a few things. Let me know if I'm way off track here.
EDIT: Looked at wrong column of numbers from fighter testing--had to correct BPV listings. Sorry about that.