I really enjoyed going through these pictures. Particularly, the comparison pictures. I was unaware they made changes to the Bob Marvel models, so this was interesting.
I like the style of the old sights. Both front and rear. However, I wish the old sights could be setup the way of the new ones. Meaning, I like the shape and fit of the old ones, but wish they could be had with a solid black rear and a gold bead front. The old front sight looks to be blended more nicely with the slide, and the old rear sight fits the cutout in the slide better. One thing I do like better about the new front sight is, unless my eyes are playing tricks on me, it looks to be stippled to match the top of the slide. If that's indeed the case, that's a nice touch.
The new thumb safety, while it looks to have the same ergonomics, seems to be a more substantial and stronger piece. The lines on it are blended nicely, which makes it more aesthetically pleasing. I do wish that it had the wider serrations in it like the old one, though.
Old slide stop looks nicer. I can't imagine there would be much of a functional difference, but it just looks like more of a unique piece, rather than a typical style slide stop. And with all the other unique features of the Marvel, I think the old style fit it better.
I like both style serrations. Not sure if I can really say I prefer one over the other. I think the new style has a cleaner look. I think the old style looks more unique.
I like the old grip safety with the ball cuts in it. The new one seems like they just did away with a bit of a unique feature to make it look like every other grip safety.
I like the french border on the old slide. Again, it seems like they just did away with a feature on the new one.
The new slide seems to have more of chamfer on the muzzle end, which looks nice.
While I liked some things about the new model, I think overall my preference leans toward the old model. I don't like that they did away with some features. And while features disappeared, the price remained the same.
Thank you so much, Birdy, for taking the time to take these pictures and show us a very good comparison between the models. I don't pictures on the same level as you do, and I know how much time it takes me to get what I want, so I can only imagine how much time you put into this.