Bogs When I Gun It Real Hard/FAST from 0 to ¼ Throttle

[Tomkay44]

I'm Still trying to tune my Nibbi PE28FL on my 2021 TBR7.
I'm at 69' above sea level SO, as you guru/motor gods seem to be suggesting, I currently have the JETS at:
-38 pilot
-112 main
OTHER MODS are:
-I just put a fresh NGK Ridium IX SPARKPLUG in
-I've got the yellow Nibbi Racing COIL on her
- The MSD SPARKPLUG BOOT
-STOCK EXHAUST (one thing at a time)
-I'm trying to keep the STOCK AIRBOX but I have chopped a lot of the top open for more air and put a 1' sleeve in the intake hose to keep it good and open.
-The AIR SCREW'S at 2 ¾ turns out.
I've been playing with the AIR SCREW, adjusting it at ¼ turn intervals down to 2 turns out and up to 3 turns out. It doesn't seem to make a difference on the bog.
QUESTION 1:
Since at 0 to ¼ THROTTLE involves the PILOT JET and, as most you all seem to suggest, that's what I need to get right first, do you all suggest I go UP TO 40 OR DOWN TO 36 ON THE PILOT JET (I don't believe there's a 39 or 37) in order to to lose that O TO ¼ THROTTLE BOG? (Or do y'all suggest something else is causing it?)
QUESTION 2:
When I'm doing "PLUG CHOPS" trying to achieve that carmel colored porcelain, DO I NEED TO USE A NEW PLUG EVERY TRY/CHOP or will the black (or white) burn away to the new, carmel color once I've gotten it right?
It seems like a new plug every chop might be costly. Especially on the Ridiums.