Hi all, I purchased a flatline Ops scope bubble and mounted it the other day on my custom 243. First time use with one of these but when I take aim and look at the bubble it's quite blurry. I've tried mounting it near the ocular on my NXS and as far as it will go towards the objective bell. I like to shoot with both eyes open 99% of the time so have mount it so when I flip the level over I can see it with my free eye. I can make the level out but it's not that clear. Is this normal or is there a better way of setting it up. As usual great site and appreciate any advice.