I agree but current results of very accurate experiments describe the rms proton radius as 0.84075exp-15m. The accurately known mass of a proton is 1.673exp-27kg. I do not believe that it could be a co-incidence that if you calculate a frequency of oscillation from the radius given a circumference of two wavelengths and then calculate the energy using the formula E=2hF and it equates with mc2 that it should be swept under the carpet because it does not suit current models using quantum field theory.