i know how to fly a tail dragger. all my planes are tail draggers. and it was corectly balanced with 120 grams of lead in the nose. so i say it wasn't the pilot either the CG.

BTW, yesterday i added toe-in to the landing gear and went flying. tracked straighe, got airborne about 3 feet and than violently banked right and smashed into the ground. fuse totaled, wing without scratches. could be repaired but i just don't want to.