In article ,
Jack Allison wrote:

Bottom line, everyone arriving at OSH needs to be on their game and able
to maintain altitude/heading/speed. If unable, land elsewhere. It's
really not hard, anyone who considers themselves current should be able
to do the arrival...but it's amazing to see how many folks interpret
1000 AGL and 90 kts differently.

And remember, there will be faster airplanes flying 500 feet above and
over your! Maintain YOUR altitude!