Switch machines ready for installation

So these are the last 4 of the first 7 replacement switch machines yet to go on the N scale layout.  I am replacing the Switchmaster machines with Tortoise machines.  The Tortoises are not as quiet as the Switchmasters, but they offer power to the turnout frog which really helps short N scale locomotives to maintain contact and power.  And they seem to be very bulletproof. 

So once these are in, I only have about 45 left to go.  And - I won't be blipping these again.  About as interesting as watching paint dry.