Yes I tend to agree. Although I think HPI is more likely to be successful after Candida has been largely eradicated, there is probably no downside in taking it before and after. It might speed up recovery.
My only consideration is the cooperation of my reluctant donor. My donor finds the whole thing repulsive (which is a perfectly understandable reaction). Thus I cannot rely on her for an unlimited supply of the 'good stuff'. But if you can organise to do HPI several times then I think that is best.