Louis,

I have a CMP Yak at it took a lot of weight in the nose to balance. I am not surprised you have the same challenge. Nosing over may, or may not, be a result of a forward CG. What kind of runway are you flying from? If grass, it will be much more difficult to hold the nose up than with hard surface. I fly from a paved runway and the fellows I fly wih that have Spits are frequently rubbing their cowl down on the pavement.

Keep at it, you will figure out how to keep that nose out of trouble.

Bedford