you forgot the best part: "useless when prices are going up"(or down for short guys like you). If you attend one of Simons Trade to Trade well courses, there is a page that gives character to traders and you certainly will be in the category of "lost". please attend and get educated.
I have to humbly disagree with you abt PE ratio and RSI. PE ratio is driven by earning and no of share in issue. RSI measure the strength of interaction of demand vs supply . Not show where the above correlation is?