Stop losses have no place in an income strategy like HYPs because share prices are of little or no concern. Therefore there is no reason to sell a share in my strategy just because its price has fallen. Overwhelmingly, price falls are just market noise.
Stop losses are used principally by traders attempting to make money from capital gains but trading is not part of the HYP approach. In fact the opposite is true, non-trading is part of the HYP approach.
Eternity hold exists with me because on balance I believe, and have seen, that most shares will recover. Enough to vindicate this approach on balance.
It would be contradictory for me to advise you on using stop losses in my strategy when I totally disagree with their use in HYPs and also, it would constitute personal investment advice which I am legally prohibited from giving to individual readers.
You use the expression “support levels” which is a chartist term. Charting, or technical analysis, is for traders trying to profit from price action so I see no place for it within HYP income investing where the sole aim is to earn dividends. In contrast your message is focussing on capital values which is entirely the wrong way to consider the method. HYPers buy a share exclusively for its income potential, not for its price potential.