Keeping the tank at full shouldn't hurt your time one bit. Its a good safety for just incase.
Happy running ... and don't forget to find a way to record your runs and post them in our AutoX video thread. Would look forward to seeing your runs.
Hatch Nation Member: #147
R.I.P - FELLOW FF MEMBER, IZZY, BLK2k3GTS, will always be remembered. We will compete on a different course again one day.