This stone is sometimes referred to as Cramflats. Fairly easy to find (can be seen from the A9, in the distance). Turn off left just after the Luncarty junction, on to a farm track. Bear left towards Pitlandie then left again towards Cramflat. There's a convenient space to park on the corner so you're not blocking the road!
The stone's just under 6 feet tall, with no visible markings on it. Oriented NNE-SSW. Date of visit - 13/11/02