There is no weight increase and I still run the stock tanks (26 gal.). It's a two hour to fuel airplane. Weight has never been an issue with me, at MTOW I still climb out at 1100 FPM at 80 mph. At 2 hrs, I'm ready to be on the ground for a stretch anyway. I lean it to 8.0 GPH at 2350 rpm and fly about 115 mph. It's nice to have the digital fuel analyzer and its dead on..... Pardon the pun.
