So, there's a bit of confused wording here, but I want to see what other think.
In Rigger 5.0, the Drone Arm mod says "Unless otherwise noted, use the standard cyberlimb rules, though limbs cost half of the normal price. (Upgrades for the arm are at full price, however.)"
Does this include customization?
The word "upgrades" is very vague, and could mean "anything but the basic (Pilot-AGI)/(Body-STR) arm", or it could mean "aftermarket enhancements and accessories". If it's the former, it's a very minor benefit, but I suppose it's not awful.
However I'm pretty sure it would include customizations, since it seems like in the book that you're not "upgrading" a 3/3 limb to whatever you like, you're buying a custom limb at whatever attributes you want. Thus why customization can't be done after you've bought the limb, it has to be made that way, you can't upgrade to it.
But I'm not 100% that's what the rules say or mean, so I want to know what others on this forum get from reading the description on page 125 of Rigger 5.0.