Well, in places in SE PA where more restrictive harvest regs over wild brook trout would actually make a discernible difference (certainly another open question in it's own right..), I've long been of the viewpoint that regs could be fine tuned for various portions of the state or even in a watershed specific manner to better mirror management objectives and fisheries realities. To that end, I don't see why streams in say Berks County couldn't have a different (more restrictive) baseline general reg for harvest of wild brook trout than streams in say, Cameron County.
I know a lot of folks seem to believe this level of regs specificity wouldn't work, but in point of fact, a pretty fair number of states fine tune these things this much and even more and it seems to work ok for them.
One monkey wrench of course, is the number of fish PA stocks. Adding this additional level of identification to angler responsibility is problematic, I'll admit. The less PA is in the hatchery biz, at least the raising catchables portion of it, the easier this sort of regs tuning would be.
Still, I think it could be done if they wanted to.
