Here is my BF B30 next to my very old Courchevel B35. The difference is big. I will try to find a photo from the side. That is even a more shocking difference. It is a lot “deeper” than the K35.
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I mean I like the B35. I hope that we can give you as much info to make the best call.
At your height, you can own the look of the B35 with no problem. But it does seem heavy to many. I had to stop using it after a surgery for a few years. I am back at it again.
Edited to add a photo “from the side”.
BF B30, Epsom Noir B30 next to Rouge Vif Togo B35
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This was an old picture as I have stopped using twillies a few years ago.