Thecreason we all say test only first time around is because your training and diet are only capable of adding so much. 500mg of test will carry you as far as your body is capable of producing muscle.

Adding extra compounds will just be harsh on your system unnecessarily. The idea is to match the amount of gear to max potential but not exceed your bodys potential for growth.

Cycle #1 500 mg test
Cycle #2 500mg of test with tbol or anavar or dbol
Cycle #3 maybe add more test say 750 with an oral
Cycle #4 test 750, npp 200mg
Cycle #5 test 750, npp 400-500mg

These are just ideas to keep you growing without harshing your system and hindering your potential.

There are many variations and you will learn how you react to each individual compound this way.