I personally prefer the gun to cock just "After" it opens enough to clear the shells. On a gun of good design with a proper barrel check it is far easier to simply always open the gun to the check than to have to fiddle with holding it open while loading or unloading. That's just my opinion of course, but guns so constructed have never given me a problem. Those you have to hold open to load are a constant problem as to do it easily & safely you really need three hands.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra