I suggest making a save state for every part of the difficult trick, 1 save state for the flagpole inputs, 1 save state for getting D70, 1 save state to just simply land on the first pixel. I also suggest getting the FPG rom to help you know if you got D70 or something else. From there you practice. For 8-3, you can do this https://www.speedrun.com/smb1/thread/49a7c or this https://www.speedrun.com/smb1/thread/vboca
That's the physical things you can do, and eventually you'll be able to get FPG once. and then as an IL, and then in a run. If you want to get consistent, then it comes down to mentality.
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