The 501 is my favorite, to me the 500 does not fit the series, it's to fat and stumpy, I do like it but wish it was of the same proportions of the 501 and I would really like it then.
The 500 is basically a sawed off/stumpy 110, lay it over the 110 and you'll see what I'm talkn about.
Quite frankly I don't concern myself with the sheeple, fortunately I have little to none around me.