Split test redirect URLs

Hi,

First of all, great plugin! I was wondering is it possible to split test the redirect URLs? So let’s say if I set up a rule for a country, 50% of the time it sends users to one URL and 50% of the time to another URL. Is this possible? Or could I modify the code somehow to do this?

Thanks!

http://ww.wp.xz.cn/extend/plugins/geographical-redirect/