it is good to sell usd-jpy because big new BoJ Monetary Policy Statement will come from japan on thrusday and friday BoJ Outlook Report (YoY) then finally BoJ Press Conference. yen is expected to become more strong. yes it may be risky trade so you should add stop loss at 107.10 don't sell if 107.10 resistance level break there is a short opportunity but be careful every movement will depend on japan news.