good gate example.
personaly I would ditch the reflector cube for a relay.
put 2 panels, 1 between the relay & each laser emitter.
as you did connect both buttons to 1 panel, but also do the same with the other panel.
the effect I think, would be the same. but relays are more bug free than reflector cubes.
so your map stability on a more complex map, would inprove.
unless I have made a mistake ?
please try my map:
"simple turret problem 5-Glodos is taunting me"
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=91525552
I put in some visable automation as you enter.

Nice version of the XOR ^^ More compact than mine... And maybe could be compacted again ;)