I think that fast through the hole means lots of noise, waves, and just plain inconsiderate. Slow with intent on getting through without trying to crowd us "bankies" works best. Quick story: Toutle mouth on the Cowlitz, springer madness, about 50 bankies on each side and this sledder comes whizzing down river, nobody could get a rock quick enough. Well, on the trip back up river, he got about 2 or 3 slinkies banged off the side of his sled and 8 or 10 others missed his boat. I almost died laughing. No wave, no 'sorry guys', no 'kiss my a$$' nothing. What an idiot I thought.
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We sleep soundly in our beds because rough men stand ready to exercise extreme violence on those that would harm us.

-George Orwell