Well the only thing I do to the CVA/Traditions is open the hammer cup a bit with a dremel and face the cup so it hits the nipple square. (actually all my cap locks get this treatment)
Most hammers come from the factory only hitting one edge of the nipple.
Ya need a dremel and the small stone grinder that will fit in the hammer cup. I pull the hammer screw so I can move the hammer on/off easily.
I use inletting black but lip stick works, put a little dab of the inletting compound on just the end of the nipple,
Slowly let the hammer down to contact the nipple, that will allow the inletting compound/Lip Stick to transfer a mark to the inside of the hammer cup, pull the hammer and look inside there,,
Use the grinding stone to "face" the inside of the cup, removing the partial circle (high spot) and repeat this process until the mark left from the nipple is a complete circle. You'd be suprised how much has to be removed to make it a flush/flat surface.
This makes/helps the hammer do it's job properly and strike the cap at it's full circumference with the full force of the hammer.
A cap struck on just it's edge may not go off