So ever since I can remember, I was always told to run test only on the first cycle because if you have any sides, you will know what is causing them. This is completely logical and is exactly what I did and I believe it to be a great rule of thumb.
I'm just wondering, has anyone ran a test only cycle and had sides that were so bad that they had to stop running it? Other than sides that can be controlled (gyno, water retention, etc.).