I would say between 20-24 is good...20 has been solid support, so if it breaks that, it'll probably go back to where it was before the March/April run
edit: actually, I read the chart wrong...support is at 0025...so I would buy between 0025 and 0028...if 0025 breaks, that's a bad sign
a better chart showing the support of 0025
Trading isn't theoretical physics.
