SpiceWeasel
Tre Kronor
I assume you're logging under company rules to get paid and/or for flight duty time calculations, which makes sense, and that, at this point in your career, you are no longer logging for any FAA certificate or currency purpose.
I received my ATP certificate logging this way. But I'm pretty sure there are more than 1500 hours when you remove the push time.
The FAA would come down on us hard if we put "flight time" as defined by FAR 1.1 in our aircraft log book. This is why it's such a stupid thing. They track our company on time performance for DOT purposes with the times I flight log.
What a PITA it would be for me to also accurately keep track of the UTC time that the aircraft "first moves under its own power."