G'day Chrome Prince,

This method was previously referred to as "the get out stakes" method and over a period of time usually proved profitable.
My own experience goes back to the 70's when that "hard as nails warrior," Bold Warrior, ridden by Des Lake was usually asked to carry in excess of 63kg in the last race which, in those days, was usually always a welter. Thus the term "welter horse" evolved. Probably not relevant today but these poor horses, because they had worked their way through the classes(perhaps not as sophisticated a system as we have today) and proved their bravery/tenacity along the way, were just too "damned good" for their opponents.
Therefore, incredible imposts were lumbered on to these "people's champions" to "bring them back to the field."
More often than not they tried their best and I can attest to "getting out" on many occasions.
I, for one, will be following your stats with interest as one of my favourite sayings in racing is that: "the best will always come first."
It is a very strong method and should return an acceptable POT.

Cheers.