Either would work. It just comes down to what you prefer. I'm a big fan of Sust. I like that it kicks in faster and it seems to make some guys hold a little more fluid, which is great for getting your cycle rolling fast, in the off season. If you are new to gear, 500mg Sust, with 4-500mg Deca EW for 12 wks, along with 50mg drol ED for the first 4 wks. Don't forget to run a solid PCT and remember that deca can shut you down hard. Running HCG at 250iu 2x wk through the cycle will make recovery a little easier after it's over