If you are asking me, no, i didnt. I never have, and i run all my SCT's and LWB hybrids ( i make my own truggies using LWB chassis, and adding a wing) in all kinds of terrain, and i never have issues with rocks and gravel affecting the steering. Maybe I'm just lucky.
These are another idea, if they ever come to the states: https://scorchedparts.co.uk/products/inner-fender-wells-arrma-senton-3s or if one of the companies here would make them.
Yes, i have done this swap, on the LWB (Senton/Typhon) chassis, using an SCT body. For anyone who wants to know what it involves, i will say, its not a direct fit, and, you do have to modify the Granite guards slightly. Here is how i did mine. This is the side with the battery straps:
and...
Why not just swap the Senton guards for the ones on the Granite? It takes a bit of finagling, but, i did it on mine. Just replace these from the Senton:
With these ones from the Granite Mega/3S: