I decided to go all out to give the Krona a fair go after a less than rewarding experience using it with the Shark SS. Never used the feather before so I had a little trepidation.
Feather and Krona looks like a winning combo for me. I had a great shave. Smooth, no irritation and DFS in 2 passes with some touch up. The feather might have been tamed a little by using it in the Krona but I never felt like I was going to be cut and I only had one tiny weeper on my chin, that closed up with cold water, where I made a bad stroke.
I guess the longevity and $$ will be the main thing with this blade.
I will try the Krona with 7 o'clock Yellow after this one. I think it needs a sharp blade to work at it's best as it doesn't have a lot of mass @ ~ 50grams. Conversely the Shark SS worked pretty well last night loaded in the much heavier 34C.