At last I have acquired a 2011 R41 which is one of my Grail razors: It's so funny that it looks nearly identical to the ubiquitous 2013 version and that a couple of mm of the top cap should make such a difference. I'm also surprised to find that the baseplate is a little shorter than the 2013 and the corner teeth are slightly thinner: I've got the 3D printed Spitfire cap which is designed to boost the performance of the 2013 to approximate the 2011 but of course it's lighter by about 8g and the baseplate is longer. It gives an amazingly loud shave and is highly recommended but it's not a 2011 is it? On this quest I also filed down the top cap of my 2013 to 18.6mm width - this certainly gives a beautiful aggressive shave but the extra thickness of the cap mitigates this and I guess this approximates to the 3D printed Hurricane cap but again it's not actually a 2011 R41 is it. I am so excited to have this razor and the big question for me is can it outperform the Shavecraft Tech? Ha ha -I remember being so amazed to find the Shavecraft Tech outperformed the Cobra Classic for me, can the 2011 R41 top that? And what blades will it like?