it actually was an issue for me it was off vertically so that's why I'm going with only mounting it to the rear railOn my jet2 the rear rail and the front rail were out of alignment by about 1/16". I was able to stack a crazy number of pop can shims on top of each other to compensate, but from what I've read it's a fairly common problem. It appears that you intend on mounting yours further to the rear than mine, so it may not be an issue for you.
This is how I have mine mounted. It would be significantly better if it were 1.5” or so further to the rear. You can see a few of the shims peeking out of the ring.it actually was an issue for me it was off vertically so that's why I'm going with only mounting it to the rear rail