Considering adding a new ML for my son and I. Currently I shoot a TC Omega and am very happy with it. I am considering adding a Knight Extreme....maybe not the new one to be released but some of the "new old stock" from sources such as Gunbroker.

My questions mainly concern the DISC system. Is this system fairly weather proof like my Omega? How much blowback is there? What is the Lehigh conversion I hear so much about? How are these rifles to clean?