I am giving serious consideration to to convert my standard trigger to a single set trigger using MVA parts. Fitting the trigger spring is supposedly the only tricky part of the conversion. Word I have is that the hammers are the same with the exception that the hammer I have can be annealed and a slot for the fly cut and pin hole drilled in the original. Does anyone have any idea where I can locate the specs for this cut and pin hole? Other than that from what I hear is it is a pretty straight forward conversion with the lower tang being able to be taken out of the rifle and held in a vise while doing the fitting and adjustment.