Hello, I have a foame with a 2826-1240kv it shows to use a 8x4.5 prop. I need to buy a prop but was wondering about a slow fly props. Do I get a 8x4.5 sf prop? How does it work and is there any advantages to using one? Can you fly longer with a sf compaired to a electric prop? Just would like to know the scoop on slow fly props. Any imfo would be a great help, Thanks Don