I have not had any probs with mine, built it in no time, and has seen some great flights so far, hoping to fly this weekend if we don't get rained out for once. I usually only do scale like stuff nowadays, but my son really wanted this one.
This thread is a little odd. I mean, do you really need tips for building this thing? It's practically ready to fly. I could see if this was tips for building say, the Saturn V, but the pencil is an EX, not even skill level 1!
GL