It would be interesting if anyone here could shed light on the two questions above.....
WRT holding back the lever, I had owned a used 686 SP that had it's top lever always come to rest slightly off-centre when you closed the breech. However, once, I happened across by chance that putting the lever "on hold" and releasing that after closing the breech consistently positioned the lever to the far right. I attempted to manually nudge the lever to it's original position nearer to the center but failed to do so. Admittedly, I didn't use force the few times I had tried that. Never pursued any logical explanation for such an occurrence either. These things are built to appropriately tight and precise tolerances - would be interesting to learn what possible impacts may be visible down the road if one were to always follow that method of closing the breech for a considerable period of time.
According to my browning booklet circa 1989 it states to allow the lever to snap back into place and to not retard it's movement.




















































