I got a extra 300 today

boy I must have been good this year. I have found some trim covering in the box that cannot seem to find where it goes does vectorflight usually send some extra covering also I got the wing halves joined and in doing so the braces really scraped the epoxy off when I put them in so as I put the them together I put the epoxy that scraped off down the middle of the wing braces so I hope it will be OK. It said to use adhesive tape on the center joint what kind of tape are you guys using for that. And one more last thing what size Rx pack are some of you using I don't have a 1000 mah pack but do have two 600 mah packs that I can use if that would be OK. Thanks guys.