Difference?

numbers speak bigger then the real thing i think. For example: "i need a pow ski, something 105ish" reply: "dude 105 is not wide enough for what you are doing, you need a 110"  5 millimeters? Sounds like a big difference but to compare a 105 to a 110 in a store you wouldnt really even see a difference i think.

example, 106 vs. 83? what are fuj, 85? regardless, thats a 20+ difference, and when tail to tail, the nose difference is 191-179 which seems enormous, but look at this picture:



it doesnt look any where near as big as the numbers make it out to be.

so i dont understand why everyone is so picky, more so on length, like a 179 is to short, but a 181 is perfect? hmm..