GBP/JPY is my favorite.... I've tried them all! I would say 75% of my trading is GBP/JPY, 15% EUR/JPY, 5% EUR/USD, 5% GBP/USD.
I've just started trading GBP/JPY and it really is working well for me, with your indicator.
I like to know what your TP and SL are for this pair (i'm using 15M) and also, what do you look out for to EXIT a trade? Also, I noticed sometimes I've had to pre-empt a movement as by the time the lines cross, it may just be too late.
I have MACD 5,13,1 setup to help me make a decision, i.e. is it going to change trend or continue trend.