I wouldn't recommend it if you are that worried about range. Depends which is more important I guess. You can just try it on the 3rd brake light first and if it doesn't work well enough for you then put it back on the windshield. I ended up with mine on the windshield because it's not illegal here, and I'm not worried about theft either honestly...
CSL replicas are now CSL counterfeits. Jesus saves, like Valentine1.