Heres advice from 2 different injection sites on hitting the delts and quads and how much the muscles can handle for beginners.
Would you agree with this advice or would your preferences be different for these injection areas as far as gauge size and amount of cc's in sites?
delts 25gauge to 30gauge half inch (13mm) to 1 inch (25mm) long needles are adequate
quads 25gauge 1 inch (25mm) long needles are adequate.25 Gauge, 1.0 inch is ideal for injections into the quads and can be used for all spot injections
25 Gauge, 5/8 inch is often used for tricep/bicep/delts
When beginning, limit injections to 3 CC's at a time for glutes, 2 CC's for thighs and 1 - 1.5 CC's for all other spot injections