Hi... I used Spirit on release and it worked very well. I have been slowly getting my phone back to awesome order. I've been reading Rock is not so good , and I decided to try removing Rock (and MyWi), then just adding the No Rock version. Literally as soon as Rock went away, everything froze. Finally got something to "reboot"... and there's the Apple Logo for the next 30 mins. Thanks Rock! I'm in the process of attempting to restore / rejailbreak / etc. We'll see I guess... Just an FYI. Rock Sucks.