Is that this one?
I just got it and I have Feather blades on the way. Do you have to modify the blades?
The Feather blades should fit that razor. I say "should" because AutoStrop liked to play games with the nib placement on their blade holders to foil the after-market blade makers. I have heard of at least one arrangement that the modern FHS blades won't fit, but I can't say which one it is. The FHS blade is not symmetrical, so if it doesn't fit on the first try, flip it over to the other side and try again. You will NOT be able to modify a GEM blade for that model.
I'm on my 6th or 7th shave with the same FHS10 blade in my VB2. I'm not sure why these blades have a bad reputation for longevity, they've always been long-lasting for me. I will say that I get more shaves out of them if I use a soap or cream that provides more cushion rather than more slickness. For me that's Lavanda or Top Secret; a slicker cream with less cushion can make the shave rough and a bit uncomfortable.
The FHS10s are stainless steel, so it's pointless to try and strop them the way the original carbon blades were stropped, but I do palm strop blades between shaves to clean the edge and make sure there's no buildup of soap residue. There are a couple of carbon blades available, one by KAI and one by Feather, the FHS05. I can't speak for the KAI blade; I tried the FHS05 and didn't finish the shave it was so rough.