I've reconditioned several Fatboys and currently have five. Like you, my eye occasionally roams. Recently a rough looking open comb came my way, and I thought it was trash. No markings, hexagonal aluminum handle, one tooth badly bent. Just for a challenge I cleaned it up, fixed the tooth, put in a Feather blade, and tried it. Surprise, it shaves great! It's aggressive, and since I shave on 8 or 9 on the Fatboy with a Feather blade, I thought an aggressive open comb might be "the one". After some keyboard time I ordered a Muhle R41, so in a few days I'll know. I also shave with straights, including a Feather shavette, which might explain why I like aggressive safetys so much. But I won't be surprised if I go back to the Fatboy again like I always do. BTW, even after far too much time on the Internet, I can't identify the mystery razor that started this.