I am looking for a kayak anchor for my 10 foot sit on top kayak. I chose the Scotty arm anchor mechanism that I'll mount on the back. While researching it seemed simpler than an anchor trolley. Im wondering what size/shape anchor will nail you to the floor? This is mostly for lakes. When I river fish in normally just drift. The internet has people talking about ocean tides and rivers and massive lakes. So, I'll ask you all. What works for you best on MN water? Do you have the chain too with a release mechanism? Obviously, less weight the better since it will off center. Thanks.