This was Eddie's response to my same question but applied to my crawling specific 5.5lb Wraith on RC4WD Rocker wheels (1" wide).
"I haven't tried those yet. I have the scorpios on a custom scale build with a trimmed pattern and like them a lot.
Since you are rock crawling, here's my recommendation.
CWR-1004 front
CWR-1005 rear
During check out, ask for the tuning rings to be included per email.
Those are 5.5, but with the tuning ring, it makes them 5.75. The 6.0 comes with the tuning ring, but the inner is bigger and 5.5 pounds is kinda light for a wraith."
This recommendation is on its way, so I can't give feedback yet and I know it's not the same rig you are asking about but figured it might help. Post some pics of yours trimmed.
EDIT 8/20/16: This recommendation didn't work so I ordered 6" 1030 & 1031's and the narrow works fine for my 1" wheels.