"I'll only accept full length departures."
What poppycock.
Rwy 31L KK at JFK is 10,700' long. Full length is 14,572' feet long.
Departure choices are 22L or 31L KK. Rwy 22L is 11,351' with a 45-60 minute taxi out. Oops, you're heading SW or W, and that departure runway is 31KK.
So, do you stand on principles and demand Rwy 31L full length?
Please post on Pprune when you'll going to demand Rwy 31L full length when even 767-300's are accepting 31L KK. I'd love to hear the conversation with JFK ground, especially with the short tempered controller.