UAL counted mine towards TT. They even made a point of talking about it because airline apps will leave it out of your totals, so my computer print out didn't add up. I explained it and they were totally supportive and made notes to fix how their computers added time together. BTW, Ms. Witt was one of my interviewers. She is a stellar individual.
DG
PS - Others can speak to it better, but I'm pretty sure SWA and FedEx don't count helo time at all. That may change soon with the current hiring environment. Ask them this weekend.