Sorry, I’ve not helped here . I’ve referred to the caliper bolts when in fact I meant the hub/carrier bolts
The caliper to carrier bolts were fine. As mentioned elsewhere, they aren’t massively tight, just hand tighten with a ratchet then a quarter turm
the carrier to hub bolts were the ones that (rightly) needed a breaker bar, as they take the braking strain.
sorry for confusion, all bedded in nicely now.
and I only added copperslip to the very front face of the piston when it contacts the pad. Not on the piston sides