Not worked up in the least. Personal decision to have more rigidity with the top strap. I guess it's an advancement in safety.upper part of the frame where your rear sight sits, like on a smokeless revolver.
it adds quite a bit of strength.
i wouldn't get too worked up about it for a BP revolver.
Well, that's all subject to change. Colt was very recently bought out by CZ. We'll all just have to see what CZ decides to keep up and running from the Colt product line. We might all be surprised at what CZ determines to be worth propagating of the Colt product line going forwards. Design from the mid 1800's may or may not make the cut... The short answer though is that Colt is no longer their own boss...WOW, I called colt and they told me it was a discontinued product and there's nothing they can do for me! Last Colt I buy!!!