Depends but think of it this way, the more you apply in one site the longer it takes to dissipate and become effective in the body..
Also you have to consider if you are using the same application area more then once per week, this can become an issue..if you do not allow enough time for the application to absorb and continue to fill that area with more and more volume, eventually you are going to cause an abcess or a hematoma (bruising and bleeding of the muscle) to occur...
This can further lead to infection or muscle damage as I am sure you are aware. Although you may feel like a pin cushion, years ago when I used AAS I found best results by doing 1-2 cc's in any site, and rotating regularly..You may even want to consider sites like traps and chest if you are comfortable applying there and you have a minimally painful compound..
^^ for other options ^^