Obligatory Note - technique refers to your personal ability to do something, juxtapose your skill levels which makes it easier to have no technique, like an Omega.
Technique time to perform: <5min
If you can’t get your site scan above X% (all numbers in op are arbitrary), it’s probably level IV or higher site. Here’s how you crack it.
Your directional movements are on the X-axis, Y-axis, Z-axis.
Get as high a percent you can. From there, move only ONE axis at a time, at a certain scan range (say 8AU). move it a little bit. Did your PERCENTAGE go up or down? If up, keep moving it a tiny bit that way, if down move it a tiny bit the other way.
Rinse and repeat for each axis.
When you can’t seem to get it to go up anymore, it’s time to narrow your scan to 4AU.
Rinse and repeat.
Keep making little adjustments until you nudge that site up to about 10% higher than where where you were stuck at. Then you should be able to target it directly and pop it with ease.