Posts: 3504
Location: Elk River, Minnesota | Hiya,
Bottom Line...
If you hit a rock at anything over idle speed, you can pretty much call your lower unit toast. Hit one above idle, it very well could twist your prop shaft (brother in law just did this on their trip)
Hit granite while working toward getting on plane and up to full speed with aluminum or steel, there won't be much left of your prop, and most likely you will have bent your prop shaft at a minimum.
In a nutshell, I'd say run whatever prop suits your rig best. But...have a second way off the water (a kicker) in case you do. At least hitting something with a kicker in an unlocked down position, you will not be out a motor...it'll most likely bounce up over it....
A spare is always good to have with in the case you do touch one at idle or just above...
Steve
Edited by VMS 8/3/2018 5:15 PM
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