Thank you for replying. Actually my account shows both X3 and Platinum as available, it's not a "surrender" licensing (as a side note, I'm always amused by the little white flag icon that the ilok tool shows for "surrendered" licenses, like melodyne after upgrade)
Yes, I was referring to audiodeluxe in my calculations, the coupon code they apply is ~15% discount
Anyway, I'm hoping Andrew Rossa or someone else from Cakewalk can provide some info regarding how to identify ineligible SKUs (forum.cakewalk.com/FindPost/3426492)