Mehul- Nice to talk to you again and thanks for the information. As things are progressing, I am leaning toward using the Zabala action but will have it re-hardened by Butch Searcy. I am now starting to make my own monoblock rather than use the zabala shotgun barrel monoblock as a organ donor. I have started the CAD CAM programing for the monoblock and its coming along nicely. Plan to do the monoblock in 4130 steel and let the machines to all the rough work and will finish things by hand (smoke and file). Should be fun! Till then simply having a ball with the SS NEF 12GaFH. Best Bang for the Buck in existance.-Rob