I posted a version correcting a few things to work with
the 6 hour wind forecasts for VORG Leg 9.
I fixed a bug with interpolation and 6h period (previous versions give wrong results).
In the NOAA import module, do not use Transformation=game winds,
as these are specific for 12 periods. Go to Config tab and select
[x] Raw grib windspeeds and forecasts
In Download params, set resolution = 6
In the main window, tab Other, in Track designer settings set
[x]windgrid timestamp+ time zone. Make sure the time zone is right!
Note that downloading winds in the 2 hours before the wind change
will bring wrong winds (because game winds are delayed about 2hs).
So update winds in vrtool after 0Z, 6Z, 12Z and 18Z.
To download version 2.05, go to
http://www.tecepe.com.br/nav/vrtool/download.htm
Use vrtool.zip file to upgrade
Hope this is correct. Not sure. If not, improvise.