What do you consider a big move?

I look at daily to capture 200 + but hourly and smaller you are hit and miss for 100 + I have one on a 30 min that targets 40 pips with 1st half and lets the remainder ride for a day or more till either stopped out or reverse signal occurs. I have another that targets 50 pips on a 5 min and hits quite regularly with decent win loss ratio.

also how long are you willing to stay in a trade i.e. those daily moves sometimes require 2 plus days

its all relative to what is considered a big move.