Sandwedge, I have a few frames both blued and stainless and what you describe is normal. As long as you have a barrel on the frame, the safety bar will drop and the hammer even from half cock will hit the firing pin as a light strike. I use mine in silhouette and have made the mistake of getting ready to fire but not bringing the hammer all the way back, then squezing the trigger only to get a light primer hit. While not an expert, I am very familiar with the inner workings of a contender frame. When you open the frame the striker gets reset into the trigger and the hammer moves to half cocked. When you move the hammer to full cocked position, nothing else happens outside of a the next notch in the hammer gets locked into the sear.
To try to simplify this, this is what happens when you pull the trigger: Pulling the trigger releases the striker, the striker hits the sear which causes 2 reactions. The first one is as long as a barrel is in place and the locking lugs are engaged, the safety bar drops. (This is the bar in front of the hammer that drops out of the way, it is not a transfer bar) The second reaction is the sear releases the hammer. The reaction is the same whether the hammer is half cocked or full cocked.
I hope this explanation helps you. While the contender is unique compared to how other guns work, once you take them apart enough you figure them out.
Paul