Leandro have you tried running a ground plane like the video says. I mean you seem to be following one person opinion instead of the gentleman in the video who is really the guy you should be listening too. Just because some people state they have never used them or needed the does not mean you do not or could not benefit from it.
I can tell you I am in the planning stages and will put ground planes in for this reason.
NJ Hi railer use them because they have issues with only certain engines.
