What blades will fit the 1924 Ever Ready? I have the CVS blades and the are hard to center in the head. if I can get them to set center while I shut the head they won't move. They move horizontally not vertically. I think the 1912 had a better design for the blade holder. I was considering sticking it out with the CVS or Gem style but I was curious about Feather blades, the spine less blades, will the fit better?