Patched them all up (I think) and gauge is reading 1.45 - 1.5 bar @5000rpm
Yeah that sounds about right, i have 1.5bar upto about 5000rpm.
When you get laptop, you could also try adjusting wastegate actuator? keep an eye for boost creep, if you start to notice it, slacken wastegate flapper back off.
Made a difference for me but i guess i was off your mark in the 1st place