As I understand it, the AES system is incompatible with Targeting Computers, thus you cannot use both to garner a -2 To-Hit modifier on the same arm-mounted weapon.
I want to ask, however, is it still legal / feasible to mount both systems on the same mech?
For instance, if I had an arm-mounted SRM-2 and Medium Laser, would the AES apply for the SRM-2 and not be of extra benefit for the Medium Laser? What if I wanted to build the AES into say, a mech simply for the added agility/refinement but I used a Targeting Computer because I needed it for other weapons on the rest of the mech?
Also, bonus round... could one use both an AES system, and a Battlemech Claw system, to create extremely delicate hand actuator control? Not for game rules benefit... but for say, doing giant public murals on an industial mech or something.