Incite uprising missions are painfully slow....and I mean ram a fork in your eye kind of painfully slow...if your target system is about 80/20 in favour of the Empire, it's going to take a long time! Incite uprising missions are a patient type of thing, check out the effect on popular support on neighboring systems in the said sector...it's a larger, long scale thing... All said, this type of mission is more subtle than it seems, and quite frankly requires patience and practice to get it right. You have to figure the balance out for your self! Bare something in mind, fellow dudes; all that double leadership stuff the Emperor being on his throne on Coruscant gives Imperial characters ain't just for maneuvering the Empire's glorious, but seriously huge Star Destroyers! The prime attribute used for Incite Uprising missions is leadership!!! Figure this: Maintenance low, situation slightly risky; blockading an enemy system with planetary defenses you just might not want to destroy? Ok, sabotage all system garrisons, and incite with characters! You'll find the system will reasonably quickly declare neutrality, so you get in there with you diplomatic dudes, and WOO! Look at the systems around it!!! Al this and your precious characters will very slowly actually grow in leadership.