I use H&H Propeller http://www.hhprop.com/ to rebuild the prop. Just keeping it clean and free moving is key. Martec stated that the blades should be no closer than 3/8ths of an inch and sould have no side to side play. If they do then the prop needs to be rebuilt. I had H&H do this for about $250 and the prop is so much better now.

DB
#397

David Bows
Mallorca - Hull# 397
~~~~~_/)~_/)~~~~_/)~~~~~~~~~~~~~~~~~~~~~~~~~|~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~|~~~~~