i have ideal both 1/2 and 3/4 benders  but instering twist with my  i took a stainless steel pipe and threaded both end and presto  i have two bender on one pipe it more heveyer but i dont have to drag two benders with me at all  [ you may want to change the length of pipe to suit your need ] my pipe bender "handle" is little over 5 feet long so it make easier to bend the 3/4 pretty fast .
 the other secret is get fine sand paper from time to time clean up the groove so you dont get any kink at all and once a while spray WD-40 will do the trick but for threaded area in the handle i used anti sezire compund stuff it work great 
Merci , Marc