I think it has been difficult to set a success criterion for something that you don't know what to expect, but in my eyes it would be if I could achieve an improvement of at least 25% with the Razorpitten than without, and since in my control I got 36 shavings, well then I had to hit 45 to be able to say that there was an improvement.
Up to about 30 shaves, the feeling was as normal, although you could tell that the blade was no longer brand new. By the time I got to about 40 shaves it seemed like the blade was starting to wear out and I was really just waiting for it to come off pretty quickly, but around the 45th-46th shave, to my surprise I got a completely comfortable BBS.
It made me analyze the last few shaves, and I came to the conclusion that the foam in the previous shaves had not been "right in the eye", which then gave the feeling of a worn blade. The next few shaves I paid close attention to the lather being as perfect as possible, and it gave close, comfortable and problem-free shaves.
When I got to about 60 shaves my surprise was actually palpable, I almost thought it was a lie but as I had plotted all the shaves in a spreadsheet since the start of the challenge there was nothing wrong, the numbers spoke for itself.
By the time I got to about 80 shaves, I could clearly feel that the blade wasn't super sharp anymore, it wasn't shaving quite as close anymore, but it still wasn't uncomfortable in any way, and I found that by using "The Gillette Glide" technique, I could still achieve minimum DFS every time, and when I used a soap with a really good glide and got a perfect lather, the BBS was also just about achievable (touch-ups included).
By the time I got to around 90-92 shaves, under normal circumstances I probably would have thrown the blade out because it felt pretty tired. It took quite a bit of touch up work to get a close shave and I could tell the blade was wearing out but now I was so close to 100 I thought it would be a bit of fun to give it a go number could be reached - without it becoming uncomfortable in any way, it just required more work.
I just reached 100 shaves but then the blade was also finished, and I have to say that it almost deserves to be displayed in a showcase for 100 shaves with the same blade, is now quite impressive.
I finished the experiment with another control shave, this time rinsing the razor in cold water after use. With this check I got 23 shaves.