Solved

Temperature compensation

Has anyone toyed with compensating setup for forecast temperatures if practice is run in temps much cooler ? 

Ie 
practice 9°
Race Day forecast 
17°

Anyone running more or less wing than ideal setup ? 

No, compenstaion need if weather cardinal change, wet to dry, snow

I did put a rain coat at home one while it was raining!! 

Euphemism  ?

oh you mean for real,

I used to wear a helmet and race suit to add to the realism , it was hot and uncomfortable,

then I realized I was a manager so put a suit on, :)