Act two....
Repeat everything you did for the outfeed side up to the point that you back out the mount set screws and drive the mount right down to the frame. Snug down the mount, and from this point forward after every adjustment be sure to get those mounting bolts very snug. They don't have to be final torqued but if you leave them loose the weight of the table will NOT be good enough to get a good reading. There is a very strong spring in the mount, and it will lift the back of the mount off the frame.
Bring the infeed table down and do whatever you have to do with the outfeed height adjustment, infeed height adjustment and front alignment bolts to get the two table somewhat level. It doesn't have to be perfect. Just eyeball it so it's not way way out of whack.
Lay a straight edge across the back (table mount) side of the tables, and note which way the table has to move to get it coplanar. Again, I'm assuming that you know how to use a straight edge, eyeball things, you'll know enough to use the infeed height adjust to help with your measuring, etc. This will take forever if I describe every nuance. I'm just trying to give a reliable and simple procedure.
Once you see how it needs to move, lift the table, loosen the mounting bolts and use only the front set screws to make a tweak. Remember to snug down the mounting bolts after each adjustment, and as you do snug down the rear set screws. Basically, you're trying to make the rear set screws follow the front. If you try to adjust 4 screws at the same time, you'll drive yourself to drink, smoke and partake in other seedy activities. If you need to back out a front set screw, back out the rear ones too and then snug them back down to match the front ones.
There's a goal here. Only one side of that infeed table mount should ever have to move, and the other side should be resting on the frame. REMOVE VARIABLES. You will still want to snug down the set screws on that side to take up the little space you're creating so that you don't bend/break the casting, but the actual adjustment can basically be made with just one set screw, and the others just follow it to take up the space.
Keep doing this until you have the rear of the table pretty close. It shouldn't take long, and you'll quickly get a feel for how much to move the screw and how much it will move when you torque down the mounting bolts. On to act three......
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