For Timeless I would always go with the OC, they are more efficient and there is no real downside, they are nicely rounded. The Bronze .78 OC has a different comb though, it's not identical to the .95 or Slim OC design, but also a very nice, soft OC.The Slim sounds like a better for for me overall,
but that bronze razor is soooooooo pretty.
I've always admired timeless handles and grooved caps....
But the .78 OC isn't soft. The amount of blade scares probably a lot of shavers away.
My journey started with a .95 SC, the scalloped bar. Smooth, but not overly efficient.
I jumped to the Slim OC next: I only needed the Slim OC plate for that.
The cap is identical/interchangeable.
I also ordered another handle, the Pineapple isn't my favorite. Ti Crown is often recommended, if you want some heft, the Barberpole 85 or 100mm maybe.
The .95 OC Timeless might be the most agreeable plate, it's a smooth and efficient razor.
The Bronze .78 OC and the Timeless Slim look similar, but are more like the evil twins/triplet that just look roughly the same.
Please notice that some handle options are stainless steel or titanium only. They are still interchangeable, if you don't mind mixing materials.
The bronze stand 14mm weighs within 1-2g the same as the stainless steel stand. Their bronze alloy interestingly almost has the same weight as stainless steel. It's bronze, not brass which is usually noticeably heavier.
Note that while the Bronze razor is the economical way to start out with Timeless, it doesn't shave like the Slim or .95 OC at all.
I would go with a stainless or titanium.95 OC first and buy a slim oc plate for it. And by all means, get a scalloped cap.