Now that I have been wetshaving a while, I'd like to try something different than my Merkur HD. I was thinking of trying an adjustable, so I could see how I might benefit from varying the aggressiveness of the razor. I have been trying to get a Gillette Fatboy (through BST, eBay, etc.) but haven't had much luck. Would I be better off trying a Progress or Futur? Is there an advantage to having a vintage razor over a modern one?