Yes, Elite Controller does make a big difference since you have the underbelly pads that you can map for other buttons (you can only map existent controls, not for new ones.)
So if you map the underpads for D-Pad, you can change pips without having to take your left thumb off from the pitch/roll stick - which would be really helpful in combat
However, i mapped them in a different way (general convenience not combat focused):
- top pads as LT/RT so i can have throttle in a more convenient position
- bottom pads at LS/RS clicks (stick press) - and i mapped to them the lateral thrusters
- then variousl pads combinations + other controls to bind -100%, 0%, 50%, 75% throttle, Chaff, Heatsink, SCB, SLF Orders (attack, follow, dock) and head look
Setting a really big dead-zone can really help with the required finesse needed to aim with fixed weapons. Try it.
However, a better setup, at least for flying, it would be to learn to use a Hotas. Unfortunately the only Hotas available for XB has reliability issues with stick's yaw axis...