Send us a Text Message.It's been a week since we saw Bagnaia and Marquez battle it out at Jerez, but what did we learn? Well, that Marquez is back, of course - that much is obvious. Less obvious is what it revealed about the nature of the bikes on the grid, and the engineers working on them. See, something strange seems to be happening at Yamaha. On the outside, it seems little has changed. But Mat and Peter think that first looks can be very deceiving, in this case....Also, Peter tells us ab...