I run the SE EFI Tuner on my2002 FLHTCUI 1550. Custom calibration better than even those from SE on the CDROM. ECM cable routed under seat and up through the backrest mount. Laptop goes on back seat or in Tour pack for data collection. This is the real stuff!! Lots of discussion under Twin Cam Engine Mods forum.
Brian - As you know I'm going to BB this winter also - after considering options I've decided to use the Techlusion DFO to add additional fuel where it needs to go - I know you already have the Stage1, so your rev limiter is already at 6200. At $189, and it adjusts with a small screwdriver, not a computer. Hippo says it's really all you need.
I think your right CR. And actually I don't have Stage I, just the pipes. Since I'm lazy I got the scoot scheduled for Nov. 4. BB plus 203. Still waiting on the Bassanis ( oh, and I'll atleast put those on myself ).