In my last game, there were zero neutral Generators. The only Generators were those people started with. Obviously, Tinkerer was a popular hire, though most promoted to Minister of Energy.
Anyway, for a part of the game, I had my Queen, a Tinkerer, an Inspector, and a Navigator at the same outpost. If anybody attacked, shortly before the enemy sub arrived I would send out the Navigator + Inspector, then immediately turned it around. The Inspector would arrive at the outpost, recharging the shields just before combat.
Of course, I eventually promoted my Inspectors (3 of them by the end of the game) to Security Chiefs, so I only had the combo for a short time. It was neat while it lasted, though. An interesting way to counteract the Tinkerer's negative effect.