Bump.
This has taken longer than I'd realised.
I changed engineers, and this one looked at the Paj a few months back. I was waiting for him to prepare a preliminary report, and contact me for the track test; when I rang him for an update, he'd forgotten all about it.
My Paj has now passed the tests.
We went out to Adelaide International Raceway this morning, and the engineer performed the braking and lane change tests. My Paj passed with flying colours - the engineer is impressed.
He did all the driving, and I was passenger for some of it.
Speedo check was first, against his GPS. Within 1km/h at 40, 60, 80 and 100km/h.
Braking tests were done next - 15 0.5G+ stops from 60km/h. Pulled up straight every time, brakes never began to fade or even smell hot. He was concerned that pedal pressure was too low
but when he did an emergency stop from 100km/h (with a special box monitoring pedal pressure) he measured 25kg - he likes to see about 30kg, so he's happy. Watching from outside, the nose dived a huge amount.
He considered it additional feedback for the driver.
Never looked like locking up, even pulled up straight when he had two wheels on the dirt. He was very impressed by the grip of the tyres - I like my STTs too.
He deliberately ran over kerbs all around the track, and was impressed by the lack of kick-back through the steering. He believes the offset of the rims (zero offset - Patrol rims) is a good match for the tyre size and steering geometry.
The lane change test was performed in the exact same spot where Mitsubishi test vehicles. The spots for the cones were marked on the track, on a short straight between two bends - the first bend was the one at the end of the main straight, so entry speed is limited by how fast you can negotiate that bend - particularly in a shorty Paj with lift.
The engineer had doubts about the limited droop travel at the front, but it was never a problem. I was watching for signs of the inside front coming off the road, but never saw it. He commented that the vehicle has lots of body roll, but accepts that this is unavoidable - especially when the rear sway bar was sitting on the ground alongside the track. The tests were passed without it, so I officially no longer need it.
I also noticed my exhaust is loud, and the tyres aren't.
His only other comment was a little bit of float/squirm in the front end, which he puts down to the large tyres. He thought testing at 50psi might help, but decided not to bother. The test started with 36psi all round (my choice) and that will be on my new tyre placard.
He looked at the angle on the Panhard rod, and it's not enough to worry about modifying the chassis bracket. He suggested I install an adjustable rod to re-centre the diff, but it's not an issue. I had also prepared some "alternative" droop stops (6mm rubber strips) and he's happy for me to install and use them - but the test passed without them, so they're not essential.
All in all, the testing went as well as I could have hoped, and the Paj handled much better than he expected. Now I've got to wait for his report (and invoice), and get SA Transport to accept it.
- but I'll check. 
and (with my approval) butchered the tinting with a razor blade - in his opinion, I won't leave it as it is now.