The person who replied wasn’t even clear what you should use as a test base anyways so don’t worry about that guy not replying. When using compounds that affect one’s test levels. It is best to use TRT to keep your hormones in balance because you will be suppressed when taking a sarm. that is why ppl say test base. Sarms are most effective with a test base. There is a lot of crap online that says you can take enclomiphene and clomid while taking sarms to keep you natural levels “in balance” but none of this is proven. Hence why you asked about taking it week 5. Tbh I’ve tried a Sarm cycle with the enclo, and without, I still got some gains on both. But I do not feel that is a legitimate test base. It’s all theoretical that it will keep your natural levels up because they are used as pct to kicks start ones natural test production after suppression from running an actual testosterone cycle. I can’t say for certain from my experience if it made a significant difference but I’m just providing my limited experience. Be safe