Fuel tank has been assembled and installed. I'm using a 12 ounce 4titude gas tank which combined with the DLE-20 engine should give me about a 12 minute flying window. The clunk's fuel line that came with the tank was scrapped and replaced with the yellow line by Sullivan ProFlex. I have been running this line now for three seasons and haven't had to replace any hardened lines that one would encounter using Tygon line.