The Market Wizards as a group that are swing and position/trend trading expect for 10-20% of all their trades to account for their mind blowing profits each year. Their win rate is around 40%. They focus mainly on risk management and the process of trading consistently following their best practices. - They report the entry signal is not considered to be much of a factor in their success.
It has always seemed to me that there's a fairly clear inverse proportionality between traders' overall success and the relative importance they attach to "entries". I'd even go so far as to say that it's extremely unlikely that people who subscribe to the "Get the entry exactly right and the rest of the trade-management parameters don't really matter very much" perspective can achieve any real success with their trading.
Commodity Traders Bootcamp by ex Chicago pit trader William Greenspan....google it!. Fantastic video that's free