I noted this thread and went to the Muhle site but i was not that hot to trot. So I got out my 2011 R-41 and shaved with it to see if I wanted to buy another razor I don't need. I bought the 2011 from a friend a few years back. Probably shaved with it 3 times and put it away. I've characterized the experience as 'like walking on eggs.'
For about 10 years, beginning in 2007, I pretty much shaved with straight razors 95% of the time. I'd do a slant DE (twisted head) the other 5%. Somewhere in 2018 or so I caught the artisan DE bug and began shaving with Wolfman, Blackbird, Timeless. Gradually giving up straights entirely.
So my DE technique began to improve. When I shaved with the 2011 R-41 it was a different experience. A new Feather and a comfortable and smooth bbs shave. I attribute that to the improved technique. So I went to the Muhle website ready to pull the trigger on the SS R-41 only to find them sold out. Put a WTB on DFS figuring someone might have 'Buyer's Remorse.' Sure enough I got a bite and within a day a SS R-41 was on the way to my den.
As soon as I took it out of the package I had 'buyer's remorse.' I never liked the handle on my 2011. It wasn't slippery, but it is just blah ! No art, just a pipe with a bit of nondescript knurling. The SS R-41 handle was the same, but much larger. The thing was so shiny I couldn't tell if it was plated brass or polished SS. Thankfully the huge handle wasn't that heavy, I'm assuming it is a 3 piece hollow pressed together. Anyway ... I loaded a new Feather and shaved.
I got one of the best, if not the absolute best, shaves I've ever gotten in my long life ! My ugly duckling had turned into a beautiful princess ! I'm 4 shaves into this great razor and they've all been wonderful shaves. No nicks, weepers, or irritation, and smooth as a baby's butt following. The duration is plenty long too. So like the old Camel Filters commercial (you have to be old to remember it ) this razor may not be for everybody, but it is the equal of any in my den, if not surpassing them all. YMMV.
Note the thicker, and slightly longer/wider top cap. I've never had a 2013 so maybe that's the difference between the 2011 and the 2013 R-41s ?