The Palpmobile tends not use Engine Upgrade. And really, I think how important Engine Upgrade is tends to follow what your play style.
I don't think any shuttle needs EU, just a knowledge of positioning, some foresight, and the ability to block yourself without consequence
This extends over to the scum shuttle, the YV-666
both are capable of stellar offense without actions (Vader, gunner + fcs, gunner + bossk, K4 etc.), so you can block yourself without consequence and use it to help maintain wide firing arcs on the opponent's ships
EU is only really necessary on the character Firesprays, because you can really abuse it with the rear arc & high PS + action efficiency ala K4
putting it on any other arced LARGE ship seems a waste, because you're just ultimately just making really sh*tty Aggressors
Edited by ficklegreendice