Oops, sorry Flanno, should have mentioned that - yes both with 7mm venturi. I'll add that to my original post now.

We ran the GXII in Craigs truggy (Mugen MBX-6) this avo and it rocked.
No appreciable difference in bottom end pull from the GX5-R, but definitely extended top end.
This was running the 7mm restrictor and the JDV 4 shoe with gold 1.0mm springs. I reckon it would pull harder with a 3 shoe if you needed it (muddy winter conditions etc).
This motor just pulls hard right through the rev range. Impressive.

Re the FEMCA trip - I know a couple of the Christchurch boys have had to pull out due to losing their homes etc in the quake, but there are still a good few making the trip.
I am not 100% booked in yet. The better half wants to go to the Gold Goast in August, so we will see what happens. Two trips that close might just break the bank a little