I have a Delta 6" Deluxe Jointer (JT360) and continuously get tapered results - the leading edge becomes thinner than the trailing edge (tested with a piece of flat particle board). I believe the cause of this is because the outfeed table is at a very slight decline from the knives to the end of the table. Would this be the cause? If so, how do I shim the outfeed table so that it is coplanar with the infeed table?
TIA, Shawn