In all seriousness it's doubtful if 2 percent of all saw users nation wide even own ported saws . Of that 2 percent it's doubtfull 25 percent know how to do it .
I know in this area I live in I'm the only one I know of who has any enhanced saws .
I've learned some and hopefully have given some usable advice on how to from what I do know .
I don't think it's a bad idea unless it gets in a pizzing contest .There's like 50 ways to skin the same cat and get the same results . Some use computer software ,some old school guys like me use a port map and intuition .More specifically an educated guess . No matter what a person uses it's all for naught if you lack the manipulative skills to use a die grinder .Some do,some don't .