Krishna, here's your exact scientific method, believe I work with it enough to know how to use it. 1) I, and thousands of others, have observed site injections. 2) Our hypothesis is, they work, for a variety of reasons, otherwise people would have long ago stopped doing them. 3) Our prediction? That one's tougher, but it's something like, site-injecting AAS and IGF-1/GH, along with other growth factors, will have a localized effect higher than that of the systemic effect. 4) This has BEEN tested, dozens if not hundreds of times, in both fully double-blind, placebo-controlled studies and in the real world by bbers. 5) Yes, we are still testing discrepancies, but this has been done enough times by enough studies and enough people with positive results to be considered a proven theory for certain, if not yet a scientific FACT. It took over 2000 YEARS to PROVE that the Earth wasn't round, so are you willing to wait 2 more millenia to believe that site injections are a FACT? If so, your loss. There's enough evidence, and enough testing of hypotheses, to easily support this as a well-established theory, and I see no reason to try and discredit 1000's of medical studies and personal experiments by implying I have no knowledge of something which I can obviously use better than you

Ok, so if you can have a comeback to that, a GOOD one, you win
1. Observe some aspect of the universe.
2. Invent a tentative description, called a hypothesis, that is consistent with what you have observed.
3. Use the hypothesis to make predictions.
4. Test those predictions by experiments or further observations and modify the hypothesis in the light of your results.
5. Repeat steps 3 and 4 until there are no discrepancies between theory and experiment and/or observation.
I edited this for the reason stated.... we mostly all have valid points of view, and we're going to stick by them until someone can unequivocally prove us wrong... and none of us is likely going to be around long enough for that to happen. Let's agree to disagree, and if it works for you, yay. If it doesn't, well then it doesn't. That's all there is to it