Batt Strap behind strg servo ??

I just got my strg sorted out and servo mounted on the flm chassis, but now there's no room for the front attachment point for the gorilla batt strap I was planning on using. I can get screw for the strap in by itself, but need to use the rubber sided washer. Do you mount the front of the strap on the underside here??

Suspect I'm not first to have the prob - is there a good solution out there? Anyone have a nice, neat solution??