I have a DA unit, while mixtech and as such is considered a custom, a Phoenix Hawk HK1 *...
Basically it has nothing changed, but upgraded the weapons suite to clantech... the Mediums went Heavy, but other than that...
Same armor, same speed, same fuel... just upgraded the weapons a bit.
The other players kinda groaned when I placed it on the field, until they realized it was just being used in a secondline unit.
I was playing a short lived Snow Raven Star, had no choice, so I made the few modifications before the game and well while I did have fun popping 10 pointers with high attacks...
Lesson learn : Before play, ask if you can play with an aeromap next to the ground one... or consider going to aero-mode to allow longer loiter time...
Zoom as an aero, single attacks every third turn, but you have to state which path the turn before...
Even if you AirMech most of the time, Level 2+ hides you...
TT
( * And no, I lost the game, but it allowed me to field a LAM on an otherwise LAM-less field. )