Alex - I like the way you think - whatever works is in... In my book.
I did actually stand on it initially and bounce (gently) on it. It did help a bit.
But of an update - photo's don't do it justice and Narrandera Exhaust centre were bloody patient and did incredible work to get all the fiddly bends and eventual successful line up of the pipes at the front. Grinding cleaning painting and approx a dozen test fits done by your's truly.
Apologies for photo's - but exhaust system is finished.