I actually just finished a course through work that talked a bit about 360's and the pros and cons of doing them.  I would really be interested in doing one, but as a very sensitive personality, I hesitate because I have worked very hard to build up my self-confidence. I would have to be very grounded and prepared to read through the criticisms and be willing to learn from them instead of allowing it to scare me off of continuing on with what I am doing.  I certainly don't think I am doing everything right, but I think sometimes 360s allow opportunities for axes to be ground as well.  Catch 22 as you say :)