Ok, here's my question. Since new my Beta has had a very slight blubber off-idle, but the second I start twisting it, it's nice and very very clean. I've played with needle position and my fuel screw back and forth a lot. Please don't misunderstand it runs great, very clean, no popping on deceleration. And yes, no smog crap... Most people would think it runs great presently, but I know there is a better option for needles out there. Honestly I'm just not liking the taper of the OEM needle and think there is a better option out there, plus a little tweak to the accelerator pump might be a bonus. I've had good and some not so good luck with JD's jetting kits on other past bikes, so I guess I'm looking for some positive or real-time reports about JD's needles used within the Beta diesels... Anyone?