How much does it matter - really?

A week or so ago I asked about a specific section of road that Mrs. Grouch and I ride 3 or 4 times per week. I got some answers - 6% over the total 2 mile length of the hill with a 9% steepest grade. That's close enough that I can compare other hills as long as a gradient is provided. That's good enough for me.

By comparison, somewhere in your neighborhood right now there are some adolescent boys who are propping a board onto something to make a ramp. That's probably going to work out to be about a 50% grade. Do you think that should count?