i've been taking 200mg Test Cyp EW for past 6 weeks; last week increased it to 300mg. (i get from my doc b/c i have naturally low test levels) thoughts on.....

1.) continuing to take 200mg for next 12 weeks?
2.) bumping up to 300mg (or higher) for next 8 weeks?
3.) or wait till i can stack with other aas (working on connection to get other stuff, really want hard/vascular gains...not sure if going to pan out.)

stats:
39 y.o.
5'11"
168 lbs.
bf = ?
work out 5-6x week
1st cycle was in 2003 (test/deca )--was real good...went from 155lbs to 175lbs.
subsequent 'summer' cycles - test cyp only