On bending large Radius hoops I recommend using a 3' Radius bender about 5' long and instead of trying to make it a "one shot" bender hook about7"-10" from the end of the pipe and bend about 15 - 20 degrees then move conduit about 18" down and repeat, keep doing this until you get the radius you want. use a 5' long "cheater pipe when the conduit gets short. you will soon find the arc you want. then lengthen the legs by starting farther up the conduit. adjust the flyaway end with a hacksaw as needed. you will soon be an expert hoop maker. Good Luck...Bob.
