Moving my batteries out of the bilge and upsizing for the voltage drop made the size of the cables too big for the grommet on the power head. Plus, ever try to steer a motor w/ monster cables plugged into it? Terminated the big ones on posts and then used max size wire for power head for the last 2'. Basically zero drop with this setup.
Got ALL my stuff from genuinedealz too. Best prices and they are easy to talk to. Do it right.
A set of good crimpers and heavy wall heat shrink is a must.
just my $.02