We went to Hawaii for Thanksgiving week and were very pleasantly surprised to get TSA pre-check for our outbound flight from JFK. We're a family of 5 with a mildly disabled 5 year old and we were traveling with 2 laptop computers, 3 ipad minis, etc. It was super convenient! Sadly, we did not get pre-check for our inbound flight but the Kona airport is easy and small anyway. My step-dad is part of the Global Entry program (my brother lives in London) and he loves it!
Amanda