Keep you money in USD, for at least the next six months, the Yen will fall again, one reason I'm going to buy that SawStop now, it is basically at a 15% to 20% discount to me in Yen, from where it was in the summer.
I was told by a guy I know here who is a trader that some of the laws changed recently here for paying back loans. In a nutshell, guys in the US would borrow billions of yen from Japanese banks, the interest rates were darn near zero, they would borrow for a year, and in that year they would invest in very safe investments, things that were at 6% to 8% return, at the end of the year, they would pay the loan back, in USD and pocket the 5% or so they would make after everything, not a bad deal, if you can get it. The critical thing was they would borrow yen, convert to USD, then pay back the loan in USD. Now they can no longer do that, they have to pay the loans back in Yen, thus, there is a shortage of Yen in the market. This all started happening in the early fall, and in another 6 months at the latest, this will have all run it's course, as now the rules are understood and the easy loan in Yen, paid back in USD are not there anymore.
I hope that makes sense, it is how it was explained to me.
Cheers!