DJ Mod Question

I finished installing the DJ mod 2 days ago on an 06 C50. Drilling out the 3 holes was a huge pain in the you know what. One of the hardest most frustrating things I've ever done mechanically. Drilling / filing of the holes is the only part of the process that's not precise.

I started off with a round file in a power drill as suggested, but that was taking forever. So I drilled them out with a half inch drill bit like the instructions say, but it still didn't fit so I had to do more filing after that anyway. I eventually got it in and everything reassembled.

The only problem that concerns me, is when I inserted the axle through the new differential, it didn't line up perfectly with the frame hole on the other side. It was slightly off center. I'm guessing that's because I was flying somewhat blind drilling out the holes for the differential. Is it possible that the differential turned ever so slightly during that process? So that the far end of the axle didn't line up perfectly with the hole?

I use a floor jack to raise the tire into place anyway, so I jacked it up a little bit higher until the axle lined up and then tapped the axel in with a hammer. It wasn't off by much, but it wasn't perfect like before. So that concerns me. I don't recall anybody reporting this kind of issue in any of the comments I've read on the many posts here.

I took it out for a 20 mile ride and it seemed to ride fine, but the axel alignment is lingering in the back of my mind.

I would appreciate knowing what you all think. Should I be concerned or not?