I came off test/tren 20 months ago and my bloodwork my the other work looks pretty bleak even though I did a pretty good pct aromasin with nolva and clomid. My free test was only 211 with a range of 175-700, albeit I had been up for 15 hours or so but even then I don't think it would be much higher then 10-20% max if taken in the morning. I should add my test levels were quite close to the bottom end of the range even before I took any gear so who knows for sure if it's the tren, I didn't take any bloodwork before that cycle.
If you're going to take tren I'd have some caber on hand. If your prolactin level is high after your PCT it will kill your test production.

With tren being such a strong androgen it receded my hairline much more then it would have with test alone. You may want to consider adding a different compound to your stack before going for a test/tren cycle.