Safer is always better. Don't over think things. Just use logic and stay moderate with the dose. You know how test effects you..good. Thats the most important part of the cycle. So add in a small dose of tren and see how that effects things differently. If you like it, great. If you think you can handle more, increase the dose a little, but continue to stay moderate and focus on your diet and training, using it to just add to the overall program. If you don't like tren, no big loss. You can get in great shape without it. I have. In fact, my all time best conditioning was without any tren at all.