There's a severe lack of ability to affect the performance of drones strongly enough early on.
- Before Drone Ops Augs do not affect them.
- Skills are low so their fixed bonuses are insignificant
- Which general players would actually get a Drone controller before levelling up too much because it's easier and faster? And they wouldn't need to farm for upgrading them.
a) Never seen anyone suggesting rusing Engineer 2 over Drone Mastery 3 first.
if you were to rush it you'd gain it at level 40 and have at least 3 deployable drones. I still think it's too late and also unreasonable to loose out on more deployable drones first.
b) Engineer 2 after DM3 means gaining 60% ops at level 150 and that's certainly way too late. https://www.starsonata.com/wiki/index.php/Category:Class_Skills