Unfortunately, the feel of a knife is very subjective. The only positive way is to actually hold the knife and, if possible, use it. The 511 has a longer and thicker blade than a Mud Mutt. This could affect the usage of the blade. I have a few SYKCO knives in 4 and 5 inch sizes and they all feel different. I personally prefer the 411. But, as I said, it is a very subjective opinion.