I have used shorter f-clamps joined together and I also used to have home made heavy duty long sash clamps and although they all did the job it was too much hard work or they were too heavy to work with on my own. I just finished gluing some fence panels and gates for which I wished I had more long clamps and I have 3 more thick doors to do in the next few weeks. I used the pipe clamps I have, but wished I had deeper throat clamps and that Is why I was looking in bahco and piher long clamps. It is between them and revo vario.