Looking great. You will make so much power, regardless of how long or unequal the tubes are, I wouldn't even worry about it. I made a tube holding jig for my chop saw, nothing fancy, but functional. With a 14" metal cutting carbide blade, it worked pretty well. Once I switched to a nicer 90t steel demon blade, it cut really well. It is a little slower to tighten and loosen nut, but after almost cutting my thumb off, I decided it was worth it.