“Jack Miller, fastest Yamaha on the Friday”: Peter Bom wraps up Day 1 of the Sepang MotoGP, with “surprise of the day” Pedro Acosta leading the charge, three Yamahas in the top three(!), a solid 7th and 8th for Joel Kelso and Jacob Roulstone in Moto2, plus a little deep dive into Jack Miller’s (P3) adjustable chassis. Let’s go!