There are people that post here and elsewhere who have trained with just about everyone that gets talked about regarding IS skills and have made decisions that there's other people they'd rather train with.
Yup! that's why i trained with this dude named phi. i knew the bugger and put up with him for years. bastard drove me crazy with ideas, sometimes,.... actually, most of the time. recently, he has been working on how to incorporate pizza (with and without tomato sauce) with IS training.