Interesting discussion. High entry % is great but its the total expectation of a system that is key. No doubt it is easy to cope with a high % entry system.
I was suprised at the article, which said.
"6. Systems with a high winning percentage are easier to troubleshoot. Imagine a low percentage system where long strings of losses are the norm. How many losses will it take to get your undivided attention and tell you that something is seriously wrong? Too many, I suspect. "
As all knowledgable traders know if you know your % success and the number of trades it is easy to calculate if you are doing OK or not. That is a given, not a mystery.