OP... What are your goals..? How old are you..?
Regardless of the answers of those 2 questions I'd like to say this...
Its never a good idea to stack 3 substances your first cycle.
Your body will respond very easily to just test your 1st cycle especially 500mg.
You'll never have a 2nd chance at a 1st cycle again, so you should take advantage of it.
Even if you have multiple cycles under your belt, It's never a good idea to stack 3
substances you've never used before....especially starting 2 of them at the same time.
if you do end up having any sides, you won't know which one caused the sides.
Also, if you didn't responsod to one of them, you won't know that either. If you include it
in future cycles, you will be wasting money because you will assume that it works for you.