If your pension is good, f’ it—take the leap.
If it’s so-so, may want to stick around for a few more years, bank some OT, pad the pension numbers, and then you may be able to walk right into a regional again...or at least you’ll be able to more accurately judge how much time you’ll need to spend in a 91/135 job. Right now it’s a bit of a gamble.
Beauty of your position is that if you go 135 and it sucks, or if it becomes evident that you’re going to be stuck at your operation making crap $$$ for far longer than you expected, you can always fall back on those plentiful post-LE jobs.