I called them yesterday...
No plans for a Crazy Larry on the '03-'04 trucks.
They also had no explanation for the low numbers the SO/HO trucks put out with their downloader. Here's what their testing revealed:
Tow 66hp/95tq
Perf. 94hp/106tq
Extr. 113hp/135tq
Usually the torque numbers are double the hp numbers or better. I asked them if they de-rated the older trucks for the 47re, but the response was "no, that's just what our truck ended up with after programming"
Perhaps there's something with the older truck that won't allow "crazy" power levels with a downloader?