trading gartleys etc with price action

with this pattern i have decided to use price action as an entry at the D and its extentions,up to and including the butterfly,time frame for the gartleys is weekly down to 4 hrs,price action will be 1 hour to 5 min,january i will look for the patterns and in febuary i will trade them

ab= 579
atr=70

entry plan is to trail a limit order by 50 pips,with a stop loss of 75 pips,

D= 8576

10% of AB=57

starting to trail entry at 10% of D,math 8576 +57=8633

lowest 0.8604 + 50=8654 with stop at 8654-75=8579

small inital position will add if goes the right way