Harmonic Pattern

I have a question on harmonic pattern. If a Bat Pattern for exemple is present, what do you validate before placing a trade (after the D point is confirmed)?

This is not my trading system, but so long as all other ticks are supporting your entry into the market what more information do you need other than do you have funds in your account to enter?

I started out with these patterns; fib retracements, extensions. Took me 7 years to realize trade entry level is the least important metric of successful trading.