Thanks, OneBow. Romans didn't particularly play well with anyone.
cman3, it is confusing at first. The prod socket is cut so you have about a 6 degree angle, more or less. You don't want the bow / prod parallel to the stock. The string height at full draw pushes the bolts foward, no nocks, and is centered on the bolt ends. The string at brace is just lightly touching the top of the stock. There is no real torque issue with them. Hope that makes sense.
As for the trigger, it is an s-shaped piece of metal. One end is the part you push up, somewhat like a caulking gun. You drill a hole in the center of the S for the tigger axel, so the sear end of the trigger bar move down as you push up on the business end. Fitted into the bottom of the rolling nut is a steel sear. The string at full draw is held back by the two lugs in the nut, and the nut is kept for rotating forward by the trigger bar end; when you push the trigger bar end up, the sear end moves down, allowing the nut to rotate forward, releasing the string and bolt, and hopefully killing whatever you want to kill.
The photo is a trigger bar before the axel hole is drilled and the sear end is faced with a very slight convex facing, so as you push the bar down, the nut doesnt rotate backwards or forwards. The axel will go about between my thumb and that black line down near the bottom of the shot.
The second picture shows the inside of the nut socket. The little cutout area is where the trigger sear end will go.
Hope that makes sense. I dont have a picture of the nut sear or I would post it as well. And, I forgot to mention a spring for the trigger. In medieval times they used leaf springs, but I use a regular coil spring, and drill a hole into the stock directly below the sear end. After you shoot, the spring pushes up and returns the sear end up, so it rests on the bottom of the nut. Then, when you draw or span again, the nut rotates backward, the sear end slips into the sear, and you are ready to shoot again.