sm92mma wrote:

Trying to better understand the influence of 'Waves' in the optimize tab vs. using 'correct polar for waves if available'. Using waves from WW3 model GRIB that was obtained through  Expedition/GFS .25 download.   Definitely downloading sig wav height and prim wav direction
Ran routing using both.
Waves in the Optimal tab generated two identical routes. Do not have ability to set any parameters in this tab.
'correct polar for waves if available' generated two identical when selected and not selected
Do not have a wave correction table.

what are both of these selected inputs supposed to be working off of?

limiting routing to avoid waves greater than certain heights works with this GRIB file
 

Wave correction table assumes 100% at all TWS, angles and heights as default. If you adjust the table you should see differences for those specific conditions.

Wave table accessed on the optimum ribbon, in the far left section.

I see the wave table now. But what is the 'correct polar for waves if available' setting working off of ? The waves table?