On the VG it had long range tanks, 4 taps. I would dip tanks then workout my fuel burn time. Take off on inboard tanks, if you have full fuel capacity,run the inside tanks down a bit to allow for return fuel in right hand tank, then feed off a left or right out board tank till the reserve red light came on,then switch over. I always landed with both inside tanks on. Do your fuel calcs and you will know when the reserve light is due to come on. Hope this helps you.