I had the same question as I am about to buy a WS ATAK and have a Garmin echomap 73sv that I plan on mounting on the pod.
I've been told that it should work fine, but try and get it as close to the bottom of the opening as possible.
Let me know if find out different and I will let you know what happens on my end in the next 7-10 days.
you have 2 ears and 1 mouth, use them in that proportion - my granddad
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