In fact, I have used ELRM VTOL a bit before. It is still the best spotter for LT. The only thing, that makes it useful.
Lt. Gauss Hawkmoth allows me to kill a Partisan, if I need to. Yes, it laks a punch, but I still usually stay at the top of the board in the early stages, when I use it. And I can't even describe how good it is for organised gameplay.
LRM VTROL can be very dangerous, but usually no skilled players are using it. I managed to kill 2 Parties that were shooting at me at the same time, while flying on it. No, I won't say, how it should be properly used. Problem is that this thing is the easiest to use of all VTOLs. That's why people fly on it.
RAC5 VTOL is great for TC mode. You know why...
What I really want to see is:
1) SSRM VTOL. Yes, streak SRM. Air streaks are really great! Probably, it can replace MRM VTOL. Same electronics, armour, 2*SSRM-4. Or GECM only, 2*SSRM-6 and 2 free tonnes. But having SRM VTOL would also be great.
2) UAC10 VTOL. Or AC-20 VTOL, if it will fit in the slot. Tonnage do allow such variant.