No, the 15 section is similar to the P-18, but smaller. They both are very tear drop shaped. The P-16 section much less tear drop shape. I asked the factory about using the P-18 or P-16, but they did not recommend it.

Performance Cat factory suggested installing diamond wires. As I recall the Freestyle (15 I think) had diamond wires.

Unfortunate that the factory destroyed the extrusion tooling for the P-15 mast when it went out of production.

dan