I personally never need caber, but I have worked with many that do, and believe me, if you need it, you will want it ASAP. So it wouldn't hurt to have some on hand, in case something comes up. For PCT, I am personally leaning toward Clomid now days. Just seems to work better than Nolva, IMO. Nolva can work though. Just be sure that the Tren is out of your system before you start it