Yes, it kicked my ass the first 4 weeks, then I started cutting it with deca, not so bad. It is some wicked good test though, just gotta be tough about it. I will go with the IP sus 375 in the future, less painful.
Ah, t400. It's like being hit in the ass with a sledgehammer. I used it once years ago when it first came out. One cc and my ass cheek was the size of a football. Gave it to a friend, same thing. He gave it to a friend, same thing. The third guy threw it in the trash. Said he wouldn't give it to his worst enemy. A true story from the PB archives. Take it for what it's worth.
Used it in the past, and it was literally like getting hit in the ass with a baseball bat! However, I will say that it does not hurt as bad as IP's rocket fuel did... Now that stuff was like satan in a bottle... Worked, but hurt like a mofo!