If you fly your widget to OSH, you will taxi on grass.  When taxiing on grass I keep the elevator fully up to the stops - the extra airflow from the prop should keep the nose as light as possible.  See Bill Harrelson's treatise on soft field work.

 

Grayhawk

 

Others do operate their 320’s from grass strips (Bill and Sue?).  I taxied through the grass.  Once.  It was an $18,000 taxi.  I don’t do it anymore.  My nose-tire found a soft spot and sunk about 2”.  That was all it took for a prop strike.  Thoroughly depressing.  I guess if I KNEW the field was smooth and dry I would consider it, but because I don’t know any such fields I am just risk averse and avoid them.

 

Matt