New mini pins on carpet
 

This may come across as a bit of a daft question as i am asking without doing any testing. :blush:

When your mini pins are getting a bit past it and you need new ones for carpet racing, do you just go with the new ones as they come or do you try and wear them out a bit first?

I've been told that a 4WD will have too much grip and most likely grip roll with brand new mini pins.

Whats everyones opinion on this?

I had such an issue last night 4WD, too much grip on the front end, grip roll / swapping ends. i was told to scrub the fronts in and cut the outer and inner rows off on the front. i went to cut staggers for the final much better, until the pins are a bit more used.

Firstly I am relatively a noob and drive 2WD, but yes in my experience new minipins up front on carpet can induce grip roll. But after a lil while they become perfect.

Can I follow up with a daft question?

How do people go about scrubbing the mini pins away from the track? Run then on the road for a bit? Or will that totally wreck them?

Yes, I'd guess running them on the road would do more harm than good - or at the very least lead to premature wear.

As others have mentioned, the typical way to limit grip-roll is to use nail clippers to trim off the outer row of pins.
Otherwise, all I typically do to a new set of my own is to work the new tyres/pins over with a foam-filling sanding block just to take the "fresh" off of them. From there, it's not unusual for anyone to find it takes a few runs to "break-in" their tyres to the point of them being good.

I always remove the inside and outside row off the fronts and just run them as they come out the packet.
Using the Schumacher chubby inserts makes a difference too.
Because they are bigger they stop the tire rolling as much.

Cheers lads.