I was at Harbor Freight lookin at this tube bender - http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=32888
wondering if these things work- heard they just kink tube, even when heated, i've also heard that if you use a die 1 size larger than the tube it wont kink as easily, I want to be able to bend 2" fairly thick DOM for a rollcage and not waste my money on one of these dangfangled contraptions if they arent gunna do it, anybody use one?