[cobred]

Sammy, here is what I did with my doors. I removed the latches and aligned the doors exactly where I wanted them, all gaps front, rear and bottom and parrallel with the body. I found this is easy without fighting the latch. Then I installed the latch with 2 washers top and bottom and put a little white lube on the latch, this makes a big difference in the closing effort.
Then shim as needed always putting the same amount top and bottom. Another thing that makes a difference is moving the latch foward or back to get it to the correct depth with the striker on the door. A little movement makes a big difference.
One more thing, I would not use the nylon washers. Use metal, the wedge part of the latch is already mounted in rubber so you dont need more flexing parts.