I received a brand new MB550RC in the mail today. I will not say who sent it, but I will say this is the best built fox/cat trap I have ever seen in my life. The base plate is made in two pieces and bolted together with lock nuts. The jaws are thicker and heavier than any trap jaws I have ever seen any where. They are also cast jaws. The pan is not adjustable and has 0 pan tension on it. The dog is some of a work of art. The dog is round and angled with a hair trigger night latch built in. This is the heaviest and smoothest trap I have ever seen. I am ordering 2 doz tomorrow morning along with all my next year supplies. I thought I would give yall my review of this new trap line from MTP.