Seems that jetting for different bikes is considerably different with the mod from RB Designs..what works best is, well, what works best for you.
'Fer instance..I'm surprised you got anything decent out of the AEG. I didn't.
The AEN changed things hugely for the better when I use my KG35 (torque). The AEN being .060mm larger diameter than the AEG, the off idle-to-1/2 is exactly where I needed less gas.
Anyway, I know that the main can effect the lower circuits. Changing the main a couple of sizes will effect my idle speed for example. That's why the jetting sequence STARTS with a WOT chop test.
Using the diameter of the needle effect as an example, changing that will do the same thing as changing the main jet diameter. Whether you increase the main diameter or decrease the needle diameter, you will still see an effect from idle to 1/2 (again, using the needle diameter effect from the needle chart).
mine:
'00 200, aribox mod, FMF rev or torque, PC S/A, Boyesen power reeds, B7ES. Alt around 2500, 60-75º
42-150-AEN/4 for torque
45-155-R1173L/4 for rev
Dan is working with some hi-falutin double/triple taper needles. I'm sitting, waiting patiently for someone with the brains and the patience (Hi dan!) to get it figgered out. Meanwhile, my bike runs great!
BTW, my riding buddy was doing some MXing last weekend. He runs pretty much the same setup I do (RB included). He had people asking him WHAT he'd done to his bike, seeing as he could pull every bike he rode with (KX 250/500's included) except a 426!
YeeHaw!!