I switched from Para Pharma Test E 250 to the 400 version now, so I already know that Para Pharma has great legit and powerful gear which keeps the promises. I was very happy with the 250 version, same now with the 400! Pip is definitely a little more but hey that was expected. At the end of the day its still not hard at all and I sometimes had a harder pip with some other brands 250 version (not kidding)!!! I am injecting 1ml mostly in the glut every 5 days. Because I was on almost the same amount of testosterone before I feel no changes, business as usual!