Applied renewal online 16 April
Old passport signed for 20 April
Old passport marked as received 10 may
Approved 12 may
Printed 16 may
Received 17 may.
Had photo taken at local photography shop entered digital code which loaded onto passport online application.
Seems as others say once old passport is marked as received on tracker it goes through fairly quickly. Nearly 3 weeks waiting in the post room seems the biggest wait, sheer weight of applications it seems.