"The tailpipe is a little thicker than it needs to be and people are changing them for lighter ones but the skymaster one does the job well". What part of the pipe do you think is a little thicker than needed Ali? The inner thrust tube or the outer ducting? I have one on the way, but not yet in hand. I hope it is the inner. I would far rather have a too thick thrust tube than worry about it collapsing after a toasty start!