OKIE -
The tower you have is perfect for 11 meters. The PDL is a better choice than the Moonraker because of the wind loading thing, and is better than the Maco because you have both vertical and horizontal polarization with the PDL.
- 399
Maco makes dual polarity beams" I would say call Maco and by a Gizmotchy 3 element dual polarity their great antennas and weigh only 113 pounds assemled you can always add another element kit later.