@CHRISTIAN NEY, Thanks for your explanation.
T-Shooter had been very promising. But it was betrayed.
So I Created a copper base, and T-Shooter is customized for LN2.
T-Shooter Mod Extreme IV base unit
http://materialistica.livedoor.biz/archives/51667013.html
more photos
http://livedoor.2.blogimg.jp/materialistica/imgs/c/4/c4479da8.jpg
http://nueda.main.jp/blog/archives/005901.html
http://materialistica.livedoor.biz/tag/T-Shooter_Mod_Extreme_IV