BT may tell me to but out here but I saw this question the other day and after today's trading I was able to do a quick video of a progression of fork applications on a 1600 tick ES chart...
Not saying this is per the methods that BT is teaching but this is how I used forks today to help manage 8 trades.
maybe this will help to see how things change as the day goes on and dynamic use of forks... and in the end, the last fork mid-line along with fib extension helped confirm my target for the last trade of the day taking profits at 1297.75
News 
Market Data 
Discover 
AI
