Other than training and checkrides, I flew exactly one 91 leg at Boutique. I'm sure pilots in Denver and Dallas flew plenty more than that since they were maintenance bases, though.

And other than that one 91 leg and training flights, I flew three empty 135 legs in a year, and those were due to 12+ hour maintenance delays. Those empty legs still had 135 flight numbers and were counted toward EAS reliability stats, so it's not like you can just magically decide that they are 91 flights.

Like I said, log it however you want and be prepared to explain yourself in an interview, but from what I understand most airlines only want to see PIC time that has your signature for a flight attached to it. By all means split it up according to the regs, but that's a lot more work than I would be willing to do. You don't exactly need a bucket of PIC time to hop into a regional jet anymore. I guess it depends on what your next step is.