Depends on your cycle experience.
The norm is 75mg ED or 150 EOD, but again without knowing you experience, its hard to give dosages.
BTW, I have not tried tren, so I can't comment on gains vs sides. I plan on expirementing with it in the spring.
However most people love tren. There are few that hate it -- they usually get terrible night sweat, insomnia, fina cough, etc.