Ended up intalling R-COIL on Steam because I wanted to see how bad I was at the game.
I am happy to say I'm better at the game than I expected to be after a little bit of practice.
Still can't get past level 13 on Death Ray Manta tho. May try SYNSO on the 360 again at some stage to see if I'm still any good...
Sh'mups & all related games are the best.