We recently bought a very nice 449 drawn type plow.  It currently has 8 bottoms, and we are going to take the back 2 bottoms off to more easily pull it with our 140hp tractor.

According to the plow's manual we should move the hitch pull point more toward the center of the plow and it gives a formula to use as a starting point.... how ever the manual doesn't say specifically what points to measure from and to. <!-- s:? --><img src="{SMILIES_PATH}/icon_confused.gif" alt=":?" title="Confused" /><!-- s:? --> 

Any one out there with intimate knowledge of exactly where to measure from and to?  Heck, I'd even take a reasonable wild guess at this point. <!-- s:wink: --><img src="{SMILIES_PATH}/icon_wink.gif" alt=":wink:" title="Wink" /><!-- s:wink: -->   WD