Ditch that harness,and get the Loggy bayou tranformer system.I have the same one you mentioned and never liked it much.Also I bought a camo seat o the pants harness and it wasn't big enough for me.The loggy bayou is an excelent system.I do like the prusic sytem that comes with the one you mentioned but that harness is a hastle. heres a link to the one I have,I use it all the time http://www.outdoorsexperience.com/loggysafetysystem.html
Also heres a link to a pic of how I set up all my fixed stands using the harness
http://www.huntingnet.com/forum/tm.aspx?m=1769137&mpage=1&key=&#176967 6