@pianodule we're missing lots of info. Definitely sounds like it'll work - the same people can be AU on two accounts for sure (what if your son is also making purchases for your business?), the question is if this bonus applies to all the dif acct's.
@ashero, if I remember correctly it's 3:1 that way... but then again, maybe you cna get these miles in the SPG card?
@nitantnel - Amex MR lets you transfer your MR to various Frequent flyer programs, although you don't always get Status miles