Re weight allowance: Yes the are VERY strict. if you are over by a 'significant' amount (sorry, can't define but guess 1 would be max excess allowed) you go to the excess bagg payment counter.
Otherwise just be prepared to quote - as you may know the DUB authority just issued instructions requiring check-in to open 2 hrs before and a ration of pax to check-in agents - doubt if FR following this (yet!).