Hi Tren,
A valid point (purley academic of course), except the distance AY-BLA is 54nm ( and Wangaratta is 6300 ), therefore 4 nm outside "protected area", which is not legal, i know this is splitting hairs, but the rules are quite clear.
I do not believe jumping between enroute aerodrome MSA's is a safe practice and would not offer a turbine any fuel savings, would significantly reduce ones capacity for maintaining the big picture