I think you're in the minority then. I had no problems getting mine lined up AFTER adding some additional washers between the carrier and the spacer plates because the gate was actually warped outward. I think the holes on the mounting brackets that connect to the tub, at least on mine, weren't drilled in the proper position.What fine tuning are you referring to? My EVO carrier lined up perfectly. I used one shim for my 35" tire per their recommendation.
I'm not shitting on the product. It's fantastic. But if you look at various photos of this product installed, even from the manufacturer themselves, most people don't seem to get the gate lined up properly.
Even on their own product photo, you can see the gate still needs some tweaking, even if it opens and closes just fine.
Here's mine, which is aligned beautifully, but required additional hardware to make it so. That shouldn't have to be the case.