fuel full or on tabs....flight <2.5hrs = plenty of fuel.
flight ~ 3hrs, full fuel, plenty.Tabs should be plenty but get the POH out and check.
Flight time of ~4hrs, full fuel should be no problem but carefully study weather for wind and alternate fuel stops if weather looks to be IFR.
fuel < tabs or full, fill to tabs or full. Every intermediate stop, fill to tabs or full. Better to have a bit extra than not enough....
In flight, switch tanks when I do a FREDA check,which is when I think about it really (don't have a set method as such, just switch when it feels about right)...
EA
