I bought a ski kit from Racewax.com and it came with the multi-angle side bevel sharpener. To practice I took my old skis and measured the bevel angle and it came out to 1.5 degrees. I then checked three more pairs of skis and each came out the same 1.5 degrees. So I took the file on my old skis set it to 3 degrees and ran through 8 or passes. I check the bevel again using the marker method again 1.5 degrees. Should the angle have not changed after the filing? I am pretty frustated because I am not 100% sure what angle my skis are at. I do not want to start sharpening if I am not sure. Can you help or give some suggestions. Maybe I am doing something wrong. I read all the instructions on racewax.com so I am not what the problem is.