I see no need to turn off the TT breakers. I turn off pedestal breaker and plug in surge unit and then turn on breaker to check power condition on the pedestal, if ok I turn off pedestal breaker again and plug in TT to surge protector, then turn on for power to the TT. Before I unplug to leave camp site I turn off Pedestal breaker and pull everything.
No man has a good enough memory to be a successful liar. Abraham Lincoln
2016 36FBTS Pinnacle
2016 F350, 6.7, 4x4, DRW, long bed
B & W Companion 5th wheel Hitch