Due to the recent bids that Gillette Fatboys have been bringing on ebay, I probably will not be adding one to the stable anytime soon, barring a find in an out of the way shop somewhere. I have a Slim adjustable on the way (hopefully) that I bought for sentimental reasons, but I plan to use it also. So, my question is this... Do these razors shave any differently? The head seems to be quite similar, but I'm interested in the opinions of those who have used both. Thoughts??