I tried this and really messed up the recovery program on the phone. It would just sit at the first white htc screen when told to go in recovery. I tried so many different combinations of getting the RA into the phone when it appeared as if the posted way wasn't working. I really thought I hosed it and was getting very frustrated and upset with the thought of doing the ruu.exe start from scratch and start jumping through hoops all over again. Fortunately I stumbled across something that I tried as a last ditch effort to get clockworkmod 220.127.116.11 back in and it worked. I'm going to stay with that one until there may come a time where flashing recoveries isn't so potentially easy to fudge up. I'm still a newb but I've learned one or two things along the way. Sigh.
I was doing all this in a mac. I tried in xp with the fastboot until I realized what I was doing wrong with another step.
I don't know if it's because I'm on a mac or what but sometimes instructions seem like there's something missing, even when I follow them to the letter. Later on in the post, I find something that wasn't in the directions that help me out. No offense intended towards anyone, especially RA. It might be I'm just still too new to this rom business to be messing around with it. But then again, you can learn from mistakes and use that info to help someone else out.