My FF are Garmins so I can't help you with that but,
I have a bad back so I got an Ulterra to go on my Lund Fury XL sport and I love it. Mine's a 60" shaft.
Put it this way, I can motor up to a spot, deploy the TM and spotlock it with out leaving my seat. Jog, I-Pilot, trim up , down, it all works as advertised.
The only issue I have is every once in a while during calm windless days spot lock will disengage. But that is because I have an extra transducer cable on the TM and if it wraps up to much the TM will disengage spotlock before doing any damage. With any type of breeze this will not happen.
I very seldom use the foot pedal, I like the remote much better.
I was out the other day in 18 MPR winds, and had the sun top up ( think big sail ). I was spotlocked on a spot catching Smallies for over an hour and the boat never moved.
I would buy it again.