definately the most painful anabolic i've done. But along with trenbolone, the most effective....especially precontest! If funds are limited...you can go into a contest at 6 weeks out on suspension, tren, and winstrol and achieve as good as results compared to anything else!
I have never felt injection pain like suspension, however, I blew the FUCK UP QUICK!!! No pain no gain. I just deal with it. I don't recommend shoulder shots, as it makes it hard to do anything, like turning to wipe your butt. High hip is where I would go. I don't know about the calf shot but try it. Have fun getting huge.