A few times landing the cub (three point) it darts off to the right even with full left rudder. I'll tap the brake to stop the thing from going off the runway and it straightens itself out and everything is fine. Wondering if this is a tail wheel issue. It's got a Scott tail wheel on it and I don't see anything out of the ordinary upon inspection. When I wheel land it and the tail comes down it tracks straight with normal corrections. Anyone else experience this?