I just went thru this same dilemma with same trolling motor. I had the HB puck only. It will still spot lock and work but not have jog function as Rickie mentioned. Also doesn’t seem quite as accurate on circling and holding position.
I installed the minnkota puck right in front of the hb puck maybe 3” gap. Now have all functions and seems to have tighter tolerance as far as holding on spots.
Jog function is a great tool to help hold you on bait and fish! Hit the button and move 5ft in whatever direction then holds you on spot.


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