I am looking to buy some generic hgh either the blue tops by keifi or the brown tops I have used the blue tops and have had ok results but the talk I hear the brown tops are the best?? my ?? is has anyone used both before and what are your opinions on both is it worth the extra 50 to 70c an iu to go with the brown tops???looking to get the best bang for the buck so to speak.. but if the results are better with the browns it would be worth the extra cost... thanks for any info ya might have