Apoligies Bob only just seen your post mate, i set multimod up for Wind Vertical=Moderate. Wind Horizontal=Moderate and Turbulance=Full..And yes 10kts or over i found landing and flying more difficult, i enjoy it for some strange reason biggrin but il certainly have a look at your numbers..Cheers mate

FWIW my current "Bump" file in simulation.xml


<Bumps
windSmoothPeriod_secs="5"
localWindScaleVert_pct="75"
localWindScaleHorz_pct="8"
localWindFieldPerAircraft="y"
clearTurbulenceScale_pct="100"
cloudTurbulenceScale_pct="100"
groundBumpsVerticalScale_pct="125"
groundBumpsPitchScale_pct="150"
groundBumpsRollScale_pct="350"

They shall grow not old, as we that are left grow old:
Age shall not weary them, nor the years condemn.
At the going down of the sun and in the morning
We will remember them.