Update: The speed control switch was apparently damaged during the install and I was missing the #5(highest) speed. BassPro sent me a new switch(free) and I got it on the yak a couple of weeks ago.
New speed results= 4-4.5MPH on #5...I've run it over 6 hours and still haven't had to paddle back with a dead battery.
Did I mention reverse is about the greatest thing you could have in a kayak? I'm loving it!