I currenty own a spool of invisible thread but I'm looking for something a little quicker and easier to setup. I'm not sure exactly what the ITR is but I know it also uses thread. Is it the same type of invisible thread you can buy in spools? If not, is it just as "invisible" as in is it just as hard to see? What does everyone think about the Z-Webs system? Is it really that much easier? Would you recommend it over an ITR? I want to be able to perform as close up as posssible with the quickest setup time.