I spent 2 days trying to get the wind correct
this is what I did
Went to VR guide downloaded zip file
Saved it to my VRTool folder
Extracted it there and used the 900nq So.nav file
then set the wind server as instructed cut & pasted VRTOUTOULZ...........................
Then set the wind grid size to 5 The wind grid size is in Regatta settings where you set the wind server
then press SET.
Click your mouse on the area you want the wind and press F2
All works perfect.