Thanks for your advices, the best thing here at rcuniverse is that I can have all advices handy at each step that I'll take from here, nice to share with you and better to hear from you. Last night I ended the fin and will start to build the rudder, suddenly I'm aproaching to build the wings so I 'll have in mind the moto-x advice about the bass wood blocks.

By the way nice air brush work on your Ultimate Cowl Moto-x!