Let's assume your WOT (main) is close. Sounds like it's the closest of all anyway. 160, huh? Let that be the starting point.
Go back to sea-level stock pilot, needle, needle jet (if changed). Set your pilot air to 1.5 turns. What happens now? How does it run? Write it down, 1/4 throttle, 1/2 throttle, WOT behavior.
I suspect it will be a bit lean with your fuel even at your altitude if 160 mains run decent there, maybe quite a bit. If it hardly runs at all go 3-4 steps richer with the pilot, if it runs sorta ok but bogs/then hits at partial throttle then runs cleanly go 2 steps richer. What happens now? Write it down again. Keep going richer, the closer you get the smaller the jump.
Now hold it at half-throttle under some load. Does it surge? Too lean. Does it have a staccato sound and run 'dirty'? Too rich. Play with the needle clip. Write it down. Again, keep altering things one step at a time. If you are way off go way the other side of the problem (if it will hardly run it's so lean, go to where you KNOW it will be rich. You just 'bracketed' the problem and you know about where you need to end up to be right).
Now go back to WOT and fine tune the main. Review your notes. Is anything near it's limits or weird (needle clip on top or bottom and still not *quite* right, pilot air a bunch of turns out or in and still not right, that kind of thing)? These are clues, hopefully by this point things are much better.
The variable I can't speak to is the slide cutout. The needle jet should be fairly easy; compare how much richer than sea level your main is to run clean; the needle jet will be about that percentage richer +/- from stock as a starting point.
The only way to approach this is one step at a time, the hard way. Good hunting!
The good news is, you are too rich everywhere (sounds like, at least, without having a .wav file to listen to) but the main. You ain't that far off. No matter how many posts you get, we don't ride with 25% alcohol, which seems to be your complicating factor. Your most reliable guide is your ear, and the fact that at least WOT it runs not so bad on a 160 main.