Hi there guys. i am going to start my Test E Cycle soon.

Just a few questions, which needles is better for Test E injection? 21g 1 1/2" or 23g 1 1/4" .

The needles must be changed twice when injecting right? Once to draw out the Test and one more to inject. What needle size should i use to draw out the Test E?

About the syringes, should i change it all the time after it has been used?