You should switch to phase 2 and micro loading fairly quickly.
Re. Power Cleans v. Rows, there's no need to pit coaches against each other. Instead, consider why PCs might be beneficial. Then consider why rows might be beneficial. Ponder what might justify forgoing one for the other. Then decide what would be wisest given your previous conclusions. If you don't get the result you want, determine what went wrong and try something different.