The best thing to do for the longevity of your bearings is to get rid of the surge brakes. They are fine for short trips on relatively flat ground but that is it.
If you decide to take a trip over the Cascades to the many lakes around Bend, you will quickly learn the downside to surge brakes.
Going down the many 10-20 long steep grades, the surge brakes will be on nearly all the time, whether you need them on or not and you usually don't need them on. Especially if your foot is off the throttle going down the hills.
Your hubs will get so hot, the grease liquefies and pours out. Your hubs will get so hot, that water boils off them.
With electric over hydraulic, the hubs will be cool to slightly warm to the touch.
When I switched over, my brake usage dropped by 90%.
Also, when you launch your boat with the hubs hot, water will be sucked into the bearings.
Oil bath hubs are nice in that you never have to grease the hubs. Just look at the sight glass and you can not only see if you have the right amount oil, you can also tell if you have water in the bearings as the oil will turn milky white.