Just out of Interest Onji what do you ride?
I have a 161 Volkl zenit for bigger pow days and I usually ride a ride highlife 158 (I am 170lbs).
Both are great for freeride.
I am looking at getting a twin deck (proto ct 157 maybe) to get more into freestlye riding. Still need to be able to rip up the pow and groomers though.
You must get some serious pow up there?
Tarp works great and I usually have an edge guard on too for extra cushioning so I don't destroy the Tatami.
By the way I also taught English in Kagoshima for 3 years when I first came.