I use the arrow icons/photos in the HG image editor frequently (maybe too much). This simple idea would literally save me possibly hundreds of extra clicks per inspection:
Instead of clicking an arrow icon, having it appear, and moving it to the correct location; have the arrow icon in the toolbar be drag-and-drop. This eliminates having to click and then adjust and then do the same thing all over for the comment (if you add a comment). You click once, drag it exactly where it goes, and let go. No adjustment needed. No false clicks thinking you are adding a comment and an arrow pops up.
If you use arrows at all, just think how many clicks you could save with this little mod per report.