Update on 4-5k issue:
Yesterday I went for a ride, and examined low end is definitely running shite with pilots screw setting according to idle drop procedure. Anyway from 5k bike was running fine, and I got good fuel economy, showing me needle and main jet area can stay untouched.
Earlier I did test with choke, showing no improvement. This, together with fact that cold bike was able to start only without choke, and soft slight rumble at low revs when closed throttle, showed me that I am running too rich on pilots.
Went to friend with angle screwdriver, and found pilots were set to 2+2,25. We tried 1,5+1,75 at first, and there was noticeable improvement in 4-5k, but I got slight sharp backfires when closed throttle about 3k. 1,75+2 settings, 4-5 went great again, and sharp backfires were just slightly better. We tried 2+2 as well, but went back to 1,75+2, what is final setting now.
That is good, because i know pilot jet size is appropriate and no need to change it.
Low end is still a bit rough at steady or lightly open throttle, but 4-5k seems to be sorted, sound is the same through 3-9k, and bike is now running without noticeable dip.
From my experience, I can say that transition area between pilot and needle circuit is at 4k, and it is critical to just align AFR of needles with pilots, to get as small difference as possible. Nevermind if slightly richer or leaner, it is really hard to recognize, but the same for both. Everything under 4k is just setting of pilot jet sizes and screw turns.
Second learning is, that with new cams, bike is much more sensitive to small fueling changes, 1/4 turn tuning seems to be not good enough. Idle drop procedure would be probably ok, but 1/2 turn back was too much for new cams with longer opening. And probably 1/4 more on rear is not the best I can do.
From last dyno, I know low end can be tuned to perfection through AFR reading on each pipe, so we will do it again and see if that will match with needle area. If not, settings well be slightly leaner or richer, just to get close to needle area AFR.
But definitely I feel 4-9 is sorted, and there is just fine tuning of pilot screws left. Hope dyno will prove it ... :-)
*quick settings summary
Dr Honda stacks, Pipercross filter, 48 pilots, 188 mains, FactoryPro needles, front clip on the top (leanest), rear one slot down (approx 0,5 mm), two slide holes