Haha! Yeah, well the multiple choice holes can be a benefit when you're mucking about and changing things. Such as with a non-stock steering box. Or even the TRO setup maybe?
And since the early and late frames had different trackbar upper mounts, having choices is good there too.
But with your 73 as long as you can match the angle of the trackbar to the angle of the draglink, you're good to go. But the multiple hole choices does make that easier sometimes. I know we recommend a specific hole for a specific Bronco, but so many variables means that our customers often have to go off the instructions a bit and roll their own, so to speak.
Good luck with yours. You going to run a stock pitman arm or something else? Stock box, or something else? Sounds like a good build. Is there a picture thread where we can check your progress yet?
Oh, and to keep things honest, we've had trouble with gaps before too. I think we had a batch that had too big a gap on the axle tube when you lined it up on the bracket. The opposite of your issue. The part was still easy enough to install. You just had to put a good clamp to it, start your weld near the mount to help "pull" it inward to the axle tube, and put a mega weld bead to close the remaining gap!
Paul