I don't understand that logic
But yea, the 9-10'ers in 2,3wt's are not a real common occurrence with the cheaper rods it seems.
I would think a 10' would help- but not be a game changing difference. Drifting a little closer to where your standing, or holding your arm way up should get similar results I'd think.
I'll be in the same boat I'm sure, using a 8'6" here. Hoping to find out soon, been building up my nymph collection until we can plan a few days to head back to WV.
On a side note, I bought a bunch of materials from lively legs after watching those vids on nymphing. The little rubber legs are awesome, makes tying sweet looking nymphs easy, and they don't feel as delicate as all the other stuff I've tied.