Erring on the side of caution w/ (hopefully) an easy couple of questions. I'm updating my iP4 from 4.1 w/ 1.59.00 BB to 5.1 & wanting to keep my BB by using Redsn0w custom IPSW (I was previously JB w/ Greenpois0n, & have been on stock 4.1 firmware [except for the BB] for several months now). -Anyone foresee any problems w/ this attempt to keep the 1.59.00 BB? Any software conflicts, etc.? -If I install I Cydia app that requires a 'respring', will I have to boot tethered using Redsn0w? -If I install I Cydia app that requires me to 'restart device', will I have to boot tethered using Redsn0w? My plan is to install semi-tethered app from BigBoss, but I want to be 100% sure what I'm getting into since it's been a while since my last JB ( searching only yielded the above options, but I'd like the specifics of how they'll work after the JB). Thanks all!