I think if I look at my resources I have on scripting I am sure me and my husband could possibly figure out something that could make floating rates possible. He is in college for coding and I have messed with scripting personally and have xhtml which, although is completely different, gives me a better insight on how coding works.
Also, yes I realize that 10x would be really bad idea, but as I had tried to clarify, those were just random rate numbers and could have just been listed as 6x or 7x on the thing. I was just putting out that it could possibly reach that high if ever wanted to.
