Originally Posted by
mgcsinc
In practice, the likelihood of you having the linear limit enforced against a bag that is slightly over is exceedingly low. I think you would be fine.
+1 - IME (as someone who often travels with a case that is over the linear limit) it's rarely (in my case, never) enforced. It seems to be far more common for an agent to try and enforce the 50lb limit on someone who is allowed 70lb (I'm looking at you MAF and HOB - I've just started paying the fee and requesting a refund after the fact).