I have tried it but am thinking of returning to a single account. I am much less gung ho on the idea than I was originally, when I wrote a hub explaining my reason for the split. There are pros and cons, of course, which I intend to lay out in yet another hub, but in brief I've realized that views grow exponentially with each publication of a hub, so might as well harness the views from your current exposure. Of course, if's a showcase for poetry, it might be wise to do a seperate account. It looks as if poetry may be bringing down ranking for people who mix them in with their more search friendly hubs. Unfortunate but true. Best of luck.