it will hit you faster.. not sure about the logic behind running tren a with test cyp since cyp lasts 3 weeks and while to kick in and tren a will kick in a few days and only lasts a couple days..

if you run tren a.. run it with test prop.. and run the test prop one week longer then the tren

if you run tren e.. run it with test e or c.. and runn the test 2 weeks longer then the tren..

the 19-nor in the tren can have harsh side including impotence.. running test longer will counter that side effect as well as a few other things.