Hello everybody, I'd never guessed starting a new thread on GTPlanet. I'd always thought this would be to people that have something to teach, so I've been using others' threads to learn, making questions and studying the answers. I'd like to thanks @Praiano's, @MotorHami's, @GhostRider65's, @DolHaus's, @Otaliema's, … threads' contents, time and effort involved to make guides and the bounty to share all that information. Obviously, I'd like to thanks all the comments posted by all the collaborators in those threads too; @Thorin Cain, @LionHeart, @Bowtie-muscle, @F1Racer68, @OdeFinn and many others, without them there is no opportunity to discuss the knowledge and grow it up. I open this thread hoping to continue learning, and I hope some of you, but all, feel like teaching. Thanks in advance to all who want to contribute… and please excuse my English.