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- #1,761
Hmm I am not sure that I completely agree, at least not with what I experience. I agree that blades will certainly have tolerances and I guess in theory that it could be a noticeable difference. However, if the blade manufacturer could not even keep pretty good tabs of the distance from the holes to the edge of the blade we would have many many blades that would be almost unusable and they would most likely have a hard time staying in business. I think the differences due to these type of tolerances will not be noticeable.I can't remember if I've noticed it specifically with the RROT but I've seen it off and on with all the razors I use. I'm starting to believe that it is more blade dependent-- although I don't always have the same problem with the same blade in different razors--sometimes I do, though (Treet 7 days). The embryonic theory in my mind is that some blades have more slop in them, and some razors are more capable of correcting that slop than others. But, it's only a theory at this point.
I my case there was a clear difference between the two sides of the razor. One was clearly more aggressive. I guess one way to rule out the blade is to mark one side of the plate and cap. Open the razor and flip the blade and see if it follows the blade or the razor. My guess is that it will follow the razor. The reason for this is the tolerances mainly on the "pegs" of the razor that goes through the blade.
This peg has to be kept smaller than the hole in the blade so that it does not bind on it. However, the tolerance between the peg and blade will cause alignment issues. Depending on how well you size these peg given the tolerance of the holes in the blade will determine the blade movement that it will allow. In any casted razor this will be "sloppier" because they cannot be kept to the same tolerance as compared to CNC based heads. In my case with the RR Old Type the pegs are pretty good and snug on the blade. I do not have a lot of blade movement like in the RR Mentor or even the Fatip OC case. I thing here the pegs are shifted towards one side of the head a little bit. If I really wanted and hmmmmmm maybe I will do this I can use a caliper and possible be able to measure if it is off centre. I might try that.