Well, I made that change and didn't notice much difference. Still took several minutes to lock in on position.
Made the change listed in this thread:
http://forum.ppcgeeks.com/showthread...=agps+registry
.... and now I am able to consistently get a lock in under 10 seconds, even after a bettery pull. It could be a combination of both changes, or could just be placebo effect and some kind of caching of last position that the phone is doing, but either way. I now get quick locks and am a happy camper.