Trolling Motor Props.

[1fastmerc]

I have 72lb thrust Greatwhite trolling motor. It has a 3 blade prop on it. My question is what is the best prop to use. I mainly freshwater fish so therefore I'm in grass a lot. It's on a 1648 alweld boat that's kinda on the heavy side. I see they a metal prop among several different other ones. Just wondering if anybody on here has tried any of the different props they offer.

[iron man]

Got an extra 3 blade hanging around if you want it.

[weedeater]

you must have givin up on that merc and be goin to use your tm to get you to the fishin spots, do you need a jackplate to