VG, I have a lot of dues still to pay. I hope to get to the place where I do all the basics correctly all the time, but that hasn't happened yet. However, when I have a high lead lick to play, I think of air, tongue arch, posture, and playing lightly before I start. I will sometimes even write a reminder on the music. When I do think of those things I play cleaner and sound better. If I find myself shelving low on a note, I think of air support. When I sustain a note I think hard about intonation. I guess it isn't so much as thinking of all these things simultaneously, but thinking about them as the come up in the music.