I will add a plus for Ryan. I joined this forum to track him down and if you guys will allow me to, I'll throw in my story.
I got my PCM tuned by BGchrysler / Arlington performance a few years ago. They did not do a good job removing the auto trans logic. I still get weird lopping near idle while in gear at low speeds or when coasting the last 40ft to a stoplight. The engine just about stalls and recovers over and over until I come to a complete stop. They were not helpful at all when I tried to question why this could be. I eventually spoke to the tuner and was told "I didn't touch the transmission" I felt pretty screwed. A Chrysler factory five speed PCM runs perfectly, but I have a stock fuel map and stock performance to show for the whole thing.
The point of that story is after digging even deeper, I called Ryan, I was skeptical after my experience with Arlington or whoever the heck they are now.
He talked with me for about an hour, emailed a bunch of times and was in general a great source of info.
I couldn't at the time buy a tune from him because I didn't have the cash having spent $350 for disappointment and he was having issues getting the handhelds. They were rolling out the next model with a logger built in so it was a supply to him issue.
Very shortly I'm going to be trying again to tune my 5.2. I will be getting a Flyinryan tune. So long as I'm not blacklisted for wasting your time in the past.