Which sonar do you prefer?

[Gone Forever]

The unit comes with a mount for the trolling motor, Does it not?  If so that's EZ.  You just measure the circumference of the trolling motor and get the right size hose clamp for it.  Some use heavy duty Zip Ties.

For the Tracker if it has deadrise at the stern it's a bit tougher but if it's flat it's eazy.  I mount mine on a piece of 1/2" PVC that fits right between the ears on the transducer then attach that with a screw to the exterior of the transom above the waterline.  If I am traveling I take the screw out and the PVC pipe can be C-clamped to the transom of rentals.

I've got a 37 yr old Mirror Craft, 16'.  Work in progress, did interior last year, I'll redo the front box this spring.