Gotcha, thanks for that insight. I have been playing around with the Boston to San Sebastian route (that is better for family getting us) and that looks promising. However, just noticed that AMEX transfer rate went down as someone noted earlier.
Do you know (before I execute transfer) if there is a major delay in transferring AMEX to Iberia (already done 1k a while back), and from BA to Iberia (already have point sharing thing activated). Lastly, I would need to go Chase --> BA-->Iberia for remaining points. I assume if I have point sharing on, it should be pretty quick.
It will literally take all my points. I am looking on AA for flights to Boston among other places. Great idea - thank you.