It's a gamble man, if you think you have the gusto to keep up and you are confident in the calculations give it a try. No one can tell you much more than what you know already about generation statistics.
.....otherwise stay out of it, don't go mortgaging your house over this.
Lol I know I'm not going to get a bank loan for this. I just do not want to blow money on hardware I can use but do not really need if you know what I mean. I guess I will do it, my problem is that with my job I may not have enough money until later in the summer in which case I will have to even see if 1gh/s is even worth using the electricity lol.