I don't have a cut out model, but I do have of four solid top, all weather versions, of the C17's and have had and destroyed two of the prettier but less robust canvas top original C17's.
Previously I was riding B17's, my experience of them was they started out hard and uncomfortable, hit a sweet spot after 1,000ish miles, remained that way for a year or two, say 10,000 miles, then stretched to the point of becoming even less comfortable than originally. I gave up almost as soon as the Cambian's were released, I applied for and didn't get a trial version before they went on sale.
I find the Cambian's not quite as comfortable as B17's at the perfect part of their cycle, but not far off and they're like that out the box till the day they break (Though the all weather versions are not showing the same signs of wear) I do most of my riding without padded shorts, though do use them, regardless of saddle, if it's likely to be a tough day with little time off the bike. I can't remember when I last wore them, some time pre pandemic.
Having said that, do you instantly know when a saddle is right? I'm currently doing about 300km a week on an e-bike, which still has the stock saddle. I meant to change it when I got it about eight weeks ago, but didn't get round to it and have just realised, while writing this, that I no longer think about it. OK it's a different sort of riding and rarely more than 5 miles without getting off, but still, there's certainly been some adaptation.