So here's the skinny: I want to buy an open comb razor. I recently bought a DE89L, and, while I like it, I want something a little more aggressive. I wondered if the Muhle R41(?) is the same head as the DE89, but with a comb instead of a bar, or if the differences were more fundamental, and if the comb would add to the aggressiveness. I also looked into a Merkur 25, but know little about them. I'd prefer something still in production, and something that would match the aggressiveness of a Gillette Slim set to 5 (about the same as a Redtip) if possible. Suggestions please... Thanks