I've seen guys pluck a single tooth off 2nd gear doing that into T1 at Daytona. They put the clutch to the floor, bang down through the whole stack and haven't slowed enough before they release the clutch.

On the downshifting issue, I will concur with what others have said. My experience has been that many drivers coming over from a synchro box don't realize that they need to commit and make a nice solid shift. They are used to having to wait ever so slightly while the synchros do their work. On a sequential that pause will punish you as the claw bounces off the edge of the dogs, sometimes even kicking the shifter back at you and re-selecting the gear you just came out of.

 

Gear pot settings should be checked for proper voltage

 

Correct for smooth upshifts (ignition cutoff) but useless for the downshifts... But it's a good idea to keep an eye on it anyway.

 

Congrats on the cup, Ian!

 

Ian, Do you have any in-car video w/ the rough downshifts?

Personally, I doubt it's anything to do with the clutch as you don't need the clutch for smooth downshifts if you time the blips/shifts appropriately. If you're comfortable heal-toeing I'd ditch the auto-blipper too. I think they're garbage.

Also, I found it best to hit the hell out of the shifter. I drove Cup's like they were my b*tch, and that's how they worked best. One of the worst things you can do is get it between gears on the downshift by being too gentle, IMO.

-mike