Re: installing a bow troller
Maybe I'm not understanding what type of boat you are mounting it on.
I have a 14 foot aluminum with a casting platform on the bow. That's where I mounted mine. The $70 has poor reviews and its not metal. I was going to get the $70 one at first and then a few posters steered me to the $39 model.
They were right. The $39 one is all metal, lockable and a solid unit. I might get a chance to test it on the river today.
To be fair, several posters here recommended the $39 unit so I bought it from iBoats. They were the same price as the other sites too like Amazon.
Here is a listing of various units so you can click on them and read their user reviews.
http://www.amazon.com/s/ref=nb_ss_gw?url=search-alias=aps&field-keywords=minn+kota+quick+release
But from the units you posted it seems to me like you are trying to mount one on a Jon boat. what is your goal for your trolling mounting and what type of boat are you using it on?
Also, here is a thread when I took some pics of how the previous owner mounted the Bow mount on the rig we just picked up:
http://forums.iboats.com/showthread.php?t=320399
Last week I took it off and replaced it with the $39 Minn Kota bracket so I can remove it when we are off the boat or lock it on when it's in a parking lot.