I had a little trouble with the link but finally managed to download the pdf. I'm still reading it but it's got a few surprises... including the amnesty clause which is apparently not a one time thing but available every year to ANY team. There's also some language in there that seems to eliminate an amnestied player drawing two salaries in one year. There's a provision for an "extend-an-trade", which I gather is some kind of "Melo" rule, which limits such a deal to three years... but it's confusing because there's also a detail about sign-and-trades, which prohibits them only if it puts the team into the luxury tax. I see nothing in here regarding a minimum player age or two-years-in-college rule... but that could be one of those things in the "b-list".