Thank you everyone for all the positive feedback. If anyone has a suggestion or ways to improve the indicator, by all means please share.

That having been said, one of my goals with this plugin is for it to be unobtrusive and simple, hence why the gauge automatically hides itself when you're done.

Originally, I'd intended for the alignment indicator to be a new NavBall icon, but I have yet to figure out how this can be done. Then again, even if I could depict an icon on the NavBall, I'm not sure if it would support the "Fly-To" arrow function, so perhaps a standalone gauge is for the better after all.

There is one more instrumentation plugin I had in mind, and the continued feedback and demonstrated utility of this plugin will likely motivate me to go through with developing the next one. Although the functionality it will provide could be integrated into this plugin, I think that adding it would go against the goal of simplicity stated above, so will likely create an altogether separate plugin (which also auto-hides when not in use). When the time comes for that, I'll post a link in the OP to the new plugin.

Once again, thanks for all the feedback, and good luck out there!

-NavyFish