Dunno about "real" paddlers, but I vary my effective gear depending on conditions:
- lower gear for upwind, uphill, and when I'm tired;
- higher gear for downwind, downhill, and when I'm fresh.
For me, that means shifting my grip in-and-out by a good 3" in normal use and out about 7" for the "Stump-Puller" gear that I use when starting from a dead stop - which has my hand down where the blade meets the shaft, touching the blade.
"Low Gear" has the outside of my hand 3" inboard of the top of the blade.
"High Gear" has the outside of my hand 6" inboard of the top of the blade.
Shaft length, then seems to relate more to the width of one's grip and consequent shoulder mechanics than to "Gear".
The guy I took lessons from in Hawaii wanted a ninety-degree angle at the elbows when the shaft is held overhead. .... But when I have the shaft sized to that spec, I find it bothers one of my shoulders and makes it harder to rotate fully and practice a vertical entry - and that seems to be the genesis of my preference for a shorter paddle.
Long paddle, short paddle.... the "Gears" I use for various conditions remain the same, all that changes is the mechanics of my shoulders when I rotate and practice a more vertical entry.
I also think there are psychological/marketing considerations at work.
In general, people
need to be told what size is best for them.
Back in my surfing days (this is waaaaaay back) surfboard makers published these excruciatingly-detailed charts showing what the "Correct" length board was for surfers of different sizes..... right down to the inch.
Then came shortboards..... -)
But I have to wonder if maybe something similar is at work with paddles:
- Somebody is asking me to drop half a grand on a paddle.
- They know a lot.
- I know nothing.
- If they say "Well, we don't really know what the right size is for you and you will have to experiment", I will be prone to buying from somebody who tells me what the right size is.
Just a thought from somebody with no real knowledge....