The above screenie was yesterday's efforts. Today I got to level 7 and halfway through the trench. I'm gonna have to hack the game code and add a level skip so I can just replay the trench over and over otherwise I'll never get enough time on trench 7 onwards, ir at least for a long time. The vertical walkways are just mental and the holes I have to aim for are impossible

I think I need to promote putting my new balanced-spring yoke up the job list too - I think it's affecting my scores by complicating the aiming.
I now own 2/3rds of the top three including the coveted #1 spot
. Thanks to everyone who's given me advice and tips and encouragement! I'm aiming to get a half hour of gaming minimum every day as I can already see the benefits from practicing - I know where the TIEs are going to be! First game ever that I've put this level of concerted effort into.
Regarding pattern learning: I recognise the TIE patterns, and I'm starting to see that wave 7 is basically an earlier wave with the inclusion of an additional simultaneous TIE, so I'm hoping I can start recognising each TIEs pattern to avoid learning unique patterns for each wave. Sounds right experts?
But the Towers don't seem so clear. The tower layout changes between waves, but as I fly into the level and earlier chunks of towers reappear, they seem to be shifted horizontally. Is there an algorithm or rule of thumb for this? I normally veer right after the first triple and then keep edging right until the unshot left-side towers repeat in the middle of the screen. Is this basically how it works?
So to finish, tonight's screenie.