I guess the route varies between the 319 and 320?
Yup, generally the 319 in the mornings and the 320 in the evenings except Sun mornings where its the E145.
Its a great service, T1's a lot quieter now BA have moved out.
I can't imagine many problems lost-bags-wise with BD.
And no... BD are quite good with the bags. Its usually the through checked BA ones that go amiss