Do people ajust, rebound or not?

Where are my stabilisers?

Or you're getting so close to the limit that tiny little tweaks are giving worthwhile 100th of seconds of improvements.

Never mind the 100th of a second, I'd need 100mins worth of improvements to bother fiddling with mine

tsenior

do it after you set the sag right, flight of stairs (albeit small widely spaced steps) works for me too.