I personally think releasing unfinished material is not such a good idea. Yes I know how tempting it is, I've been there and done that. However, unless you are Necrophagist, there are not that many people out there who are crazy to hear your new stuff, so they'll just listen and forget.

Be patient and serve a finished product once it's done!
Guitarist and composer of the band SHADOWMIND. Check it out:

I liked what I heard, sounds pretty good. Not a whole lot there, but it had a cool intro leading into a good riff.