Still Having Issues in A1s

[Miiu]

Gallus might be on to something at least I was having the same problems on my first few rounds in A1S as AST. I was out of mp really fast and the lack of ewer cards wasn't helping (damn you spire :P). We did it with SCH and AST. The most likely conclusion is that you are panicking and throwing unnecessary high cost heals. But as general tips as the other have said.

1. Use Synastry during double prey.
2. Don't forget disable!
3. Lightspeed when you know you have to heal alot to save mp.
4. Don't save LA until you're really low on MP. You can start using at around 8-9k mp.
5. Use Collective Unconscious after resin bombs during jump phase.
6. Don't forget you can use Celestial Opposition to extend regen effects too.

If you're already doing this you might need to ask your healing partner to heal a bit more if that is a possibility.