Five quick, partially-formed thoughts only ... 1. Either the "reversal entries" stand up, objectively, in their own right by having a proven collective edge, or they don't. 2. It's unlikely they do, for quite a few reasons - perhaps including the fact that if you take the concept to its logical conclusion, it leads to an "always in the market" strategy (and I've never seen an "always in" method that has a net positive expectancy, and find it fairly unlikely there is one, really). 3. PSAR itself was invented for stop-loss placement/adjustment, but seems to be "clutched at" for potential trade entries by traders in search of that "perfect, indicator-driven system" (who also seem to believe in predictive powers of indicator-combinations and in entries mattering more than everything else). 4. It wouldn't be relevant to me, because "being stopped out" wouldn't ever constitute an entry at all for my kind of trading: it just signifies "a losing entry", of which I've always had plenty and always will - and that's normal. 5. I suspect that it's a concept that perhaps appeals instinctively to people who like very high win-rates (and they tend not to do so well, overall, for quite a few reasons).