... "sharp" enough with your skate sharpener (s.s.)? (ice skating)

the following text will give you some generic insight into how one should interact with his / her s.s.,

a. the ability to analyze what your s.s. says, helps you gain insight into his attitudes.
b. interact more with your s.s.., ex:
    - ask questions.
    - explain him what are you after (speed, crowd skating, competition, etc.).
c. try to "monitor" his craft:
    1.  visually check your newly sharpened skates (hollow, etc.), after each sharpening.  
    2.  mentally compare with past sharpenings, in terms of gliding, breaking capabilities, etc...
         (very relevant , if done repeteadly on the same ice surface)
    3.  interpret your "feet feedback".

optimal correlation: c1 visual check - c2 mental comparison - c3 feet feedback - ice surface,
will make you break through present limitations, in ice skating.

(analogy for roller skating, comin' up,... :) )  

you might be surprised to find out also, that among the best s.s. , in your area, some (the very best), take the initiative first & ask you a lot of questions, about your skates & skating style, etc. even before starting to sharpen them. (the s.s. tries to be consistent in what he does for you, so we think, his attitude should oblige).

we will introduce later, other concepts, related to the geometry of the skates' blades (but not only), slightly different from what you already may know.
this knowledge, never before published, which might fill in some engineering gaps, surely would enhance your skating capabilities & experience.