Kev, you are right the second time
. Lift was measured with the bigger tyres already om, so front is now 72mm above stock and rear 82
.
Tyres are the Mickey Thompson ATZs and I love them. Not quite as meaty as the STs for mud work but plenty tough enough for rocks & sand as far as I can tell so far, and waaay quieter - they sing to you rather than whine the way the STs do.
Oh, and all you folk with WHs - there are two rear springs in the Dobinsons range, a "stock" and a "heavy duty", the latter is specified as being the required one for the XH but is optional for the WH.