I just got a Christy Razor as part of SEptember after reading that a Schick injector blade can be fitted in it because of the two bumps in the front of the guard, similar to how it will fit a MMOC and MMCP. I was able to get the blade to fit in the guard and hold there, however I noticed that the guard slides side to side in the razor. I am assuming that this is because the original blades had the side tabs that would prevent this. Will this be a problem when shaving? Also can anyone tell me what the massage bar is all about and how it works? Interesting in that the bar area seem to be made of a different material from the lower plate, maybe copper?