My Weedhopper kit came with a 4-blade wooden TN prop. Within 10 hours of use I found small cracks beginning to form.
Weedhopper USA and TN props agreed to replace the propeller with a thicker one. The original was 3 inches at the hub. The new prop should have been 3.5 inches at the hub.
When I got the new propeller I found that it was 3 inches at the hub. I was not surprised when I found after only 4 hours of use that cracks were beginning to form.
I fired TN props. Weedhopper USA agreed to replace this prop with one of my choice.
Now I run a PowerFin composite ground adjustable 62inch 2-blade prop. This is a great propeller.