Go for it.
We need more people to try new and exciting things so that future first-timers will be able to learn from our mistakes--not that running tren in a first cycle is a mistake.
I am on my, well, more than first, and am running 750sus and 700tren per week, and I am really pretty happy with the results.
But, speaking of making mistakes for the purpose of knowledge, I am going to run this combination until results seem to diminish, at which time I will simply up the dosage of tren and change my base. As well, I'll be hitting Growth and slin in November or so. I am really looking forward to hitting 250-260 by next summer at 5'9" (230 now).