
I made it to the range today with my S&W 617, DS-10 speed loaders and loading block along with an Apex Mass Drive Hammer Kit installed.
The Mass Drive Hammer allows for a lighter double action pull and still allows single action. Mine are set at 8 pounds DA and 2.2 SA.
Firing 140 rounds of Federal 36 grain plated ammo I was able to fire all rounds without a hiccup.