Great, I'll give that a go. Just to double check, if the lugs were labeled U1, U2, and U3, for the upper level and L1, L2, L3 for the lower level, then you are saying to solder a 33k resistor from U1 to U3 and another resistor from L1 to L3, right?
Also, does it matter what type? Just like a little 1/4 or 1/2 W film resistor?