[Q] How to root Gratia with stock Froyo 2.2 hboot 1.02 - revolutionary or unrevoked?

Looking to permanently root my HTC Gratia running stock Froyo 2.2 and HBoot 1.02 but can't figure out what I need to do. I don't want to install any custom recoveries or ROM's just yet so does that mean I don't need to S-Off?

Should I root using http://unrevoked.com/recovery/ in this thread:
http://forum.xda-developers.com/showthread.php?t=788737

Or should I root using...

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