To be clear, I wasn't going to practice repinning on the 7 day set. I have a few other razors that I would try that on first. However, I do not have any razors where the blade is loose and therefore don't really have anything to practice on and so was going to try tightening them again.

I jumped to the conclusion, likely incorrectly, that they were bent because of some of the threads I read where folks posted that they tried tightening but it wouldn't tighten. So, I figured I'd need to repin.

That said, the key word in Glen's post was "around". In all the posts I read and video's I watched the forming of the mushroom was quite clear. Further, the need to go around was clear as well. However, what wasn't clear is that it is the mushrooming that actually tightens the scales together. As such, I thought the mushroom was formed so that the pin wouldn't fall out, but that it didn't have an effect on actually tightening anything. I thought this was needed as a step if you were repinning - not to tighten. As the suggesting was to go "around" to actually tighten - that's when the lightbulb went off. In retrospect, I feel like an idiot for not realizing this, but everyone has their moments...

The other thing was that I simply had a relatively thin piece of metal (whatever the cover for an electrical junction box is made out of) on my workbench and was using that as the backing material against which the opposing pin rested. I transitioned to the end of another hammer (as depicted in one of the videos I saw in the "how to" thread).

My guess is that it is a combination of both the above, but I can report that I have successfully tightened up the 4 razors that exhibited looseness. I could probably tighten them more (I have other razors that are tighter), but they are tight enough now that I won't have them flopping around when I strop them. I figured I'd stop while I was ahead.

Thanks for the assistance!