Tren and endurance

[rookie builder]

In the profile for tren A it says that is not recommended for endurance athletes. My question is for the experienced users of this compound, How harsh is it on your endurance? Is there anything you can do to combat this while on cycle? Post cycle? Does your endurance level just bounce back Post cycle? Just as an example, If I could run 5 miles no problem what kind of effect would this compound have on my endurance in this scenario? I'm sure that the effects are mostly individualistic but just give some ideas and educated guesses to the questions please. thanks.

[Big]

when on tren I get winded walking a flight of stairs.

[lovbyts]

I keep hearing just the opposite. People feel more fatigued, less endurance.