When I bought my skiff it came with a Power tech 3 blade prop and a permatrim installed. From what I gathered the permatrim was installed prior to the prop. I'm wondering if I even need to keep the permatrim on the motor or if I can take it off. specs are Ankona SUV 14 with yamaha 25mlh Power tech SRA3R11-YM30 and permatrim. No Tabs.