That may work, but I'm sure it will void any warranty on the harness (if one exists) since it has been modified.
Harnesses are made to specific standards: the thickness of the webbing, the thickness of the thread used to sew it together,
the number and type of stitching used to sew the harness, the placement and selection of d-rings and buckles, tensile strength etc.
Why not wear the harness as is?
Unfortunately, your probably right about the warranties on the harness. [:@] laywers!
However, the web style harness are just a royal pain to try to put on for that morning hunt in the dark. A vest style is much easier cause the vest material holds everyhing into place while you put it on. As far as I can tell that is all the vest part really does.
They are expensive. Why? Not sure myself, but as far as I can tell they are not any safer to wear than the non-vest style harness. The non-vest style is just more difficult and cumbersome to use. If price is keeping people from using them or becuase they are a pain to use, and if there is a low cost DIY alternative then there is no excuse for not wearing a harness. Regardless of the [:@] lawyers. (Don't even get me started there, mumble, mumble, blood sucking, parasite, vampires, mumble...)[;)]