I would do either protocol immediately after last test inject. When most of the test from the last inject is out of your system you are finished with the HCG and can then start the Clomid.
I'm not sure what RWD means with this:
The goal is to stimulate the testes without producing too much testosterone that it further hinders the hypothalamus. If you start the HCG too early, which is what most people do, then you will help keep your test levels up enough that it will take even longer for the hypothalamus functions to restart, thus resulting in atrophy of the testes again and wasting a bottle of hCG and a few weeks of recovery.
The goal of the HCG is only to get the testes working again. LH suppression shouldn't matter during HCG therapy, that's what the Clomid is for.