Ive ran my lectron carb on desert trails and dune rides and haven't had any issues. One of the problems that Kevin, at lectron,  explain that lots of the issues with trail type riding can be addressed with by running the larger fuel bowls and a different float set up. They usually come set up to run drag races hence they don't work well for trails. If u set them up trails they can work better. As for losing throttle response, u can't make a fair comparison between 2 carbs unless they are of the size to begin with