PHP Hydra all the way unless you going to be stuck with no limit or dp tuner for tunes on the F6. I had a Hydra on my old 7.3 easy to use and its easy to load new tunes on it.
No limit has events in NJ for live tunning, i think some one was putting together a live tunning event/dyno event.
Innovative is right in Elkton MD, I've talked to him a few times about tunning a 7.3 and he will live tune it the way you want it. Eric is a great guy.