As a further update, having arrived at Ishum's Reach via Beagle Point, I actually find myself being compelled to do the minimum possible before setting back! Grand plans to FSS every system en route to Ishum's steadfastly abandoned, as really all I want to do is get home to The Bubble ASAP (without suiciding!) cash in my data and take a break from the game.
So later on today, it's back to BP, load up Spansh and hit the fast line back via the Neutrons. No scanning, no FSS, just point and go.