Injection Placement?

[TrophyTruck]

I know that the glut is the most practical place to inject at, but is it true that if you inject in your arm that it will make them bigger faster or just because you did it there? Another question is what would be good to stack with Decanandrolen? Just off the deca I've made good gains but want to get some more size.
thx

 

[Bulldog_10]

Some people believe in spot-injections...others dont. I can tell you that they don't.

And I'm not sure what decanandrolen is...is it a prohormone?