Ahhh, fx, mmmm, different kettle of fish, me don't like.Problem using 3% on EUR/USD because that would require a daily move of about $0.035. That never happens.
I want to stay with Fx pairs because I think they are most likely to follow TA patterns compared to other instruments. EUR/USD has a low bid/ask spread so it's a good choice for me.

Why not pick something even more difficult to cut yur teeth on?
