Originally Posted by
jrl767
on the assumption that bags wouldn't be checked through*, is 2+20 (0950-1210) feasible to clear customs/immigration, claim bags, and make our way to IB?
It should be OK as long as you accept the risk of missing your onward flight and having to pay for rebooking or buying a new ticket to MAD (FRA-MAD is not the end of the world having to rebook/purchase on short notice). Most likely you will make it (unless your incoming flight is much delayed).