Not so much a PCT question more on what to run during cycle...

I have Letro on hand as well as nolva...i have nolva throughout on 3 cycles, and letro on 1...i have never had any real issues with gyno

Letro even at .25mg makes me real tired...So i'd rather run the nolva ED at about 10-20mg, and just have the letro on hand..i would imagine this is ok, but i have never run tren before so i wanted to see what u all suggest.
I will be running B6 and milk thistle ed as well