When changing to the Simonini engine I increased the pitch of my 66 inch Warp Drive prop but had the impression I didn't get the performance I expected. After long back and forth with a Spanish propeller maker I ordered a 2 blade custom built 72 inch wood prop. It looked soo good... and under winter conditions it worked well - not so in the less dense air of hot summer. I have just received a swept blade (Scimitar) 72 inch prop from NR-prop in Ukraine (also known as "Kool prop" or "Luga prop" but I call it to "wow-prop"...)
The weather has not been great this winter. I had the skis on the plane for 2 months before finding a window in the clouds and winds. Wednesday March 14th was the magic day...