Critting on crafting of speeders could refund some of the materials rather than an extra speeder.
Droid Armor has a few issues, for one thing any Armoring with a slot-restriction, e.g. Arm or Leg cannot be inserted into a Droid Armor of the comparable slot, that restriction is present for all of the high-level Armoring, which creates an imbalance between Droid & regular companions gearing upgrade options.
I've brought this up before on the forums, and no one seemed to pay much attention to it. I was trying to gear out SCORPIO with some columi/rakata gear when I discovered that the armorings would not move over.