yashung, I am in Taipei now and I'm more than willing to help you out... BUT... even I have never built a 1/3 Extra. I'm surprised that you would be building this plane!!! It is clearly a very advanced plane and I doubt you will really be able to get enough detail in the answers on this forum. But you can try!

I would try going to the flying field in Xing Zhuang (Shin Chuang) next to the river on saturday all day or sunday afternoons. There are usually a bunch of people flying 33% planes there including three identical 33% H9 Ultimates. These guys, which include 3 hobby store owners, will be able to tell you and show you exactly what to do. You'll not only get an explanation BUT ALSO get to see what it looks like when it's done.

Building that plane isn't dangerous... but if it's not done properly, flying it will be... please please get some help from these guys. And if you don't, let me know where you're flying so I can avoid it :-) Seriously though, if it's not done right, those planes can really cause a lot of damage and most of the flying fields are not so far from pedestrians. A fight broke out a month ago because someone almost got nailed by a GS plane coming down.

GET HELP! Just let them know that you're building a 33% gasser and they will be helpful. Don't just ask questions... they get weary of that real soon!