I can't use the Perfect Pullup bar with the wide molding around all the door frames in my old house and I had no other means of doing anything resembling a pull-up. So, until I do, I'm just doing band lat pull-downs with a firm band (shown at the bottom of page 12 of the STS User's Guide). Nowhere near as challenging as raising and lowering my own body weight but better than skipping past the exercise altogether, I think.