body taper (again)

[wobblywalrus]

My feelings have been for years are like robfrey's.  It is good on a sit-on bike to have aerodynamic inefficiency with detached flow behind the rider for stability's sake. 

[maj]

If air almost stays attached or is right on the edge of staying attached at the rear of the bike, it will make for a seriously butt puckered ride as it buffers back and forth between attached and separated, right and left sides of the bike.

It sure does , had a few rides like that

[Blue]

http://www.landracing.com/forum/index.php/topic,3900.msg51288.html#msg51288
please re-read.

In the areas of transition from laminar to turbulent, gradient optimization is a better choice than trip strips at the higher Rn of LSR.  For all the fans of smoke in a low speed wind tunnel, transition gets better with speed not worse.