For my case the SL is depend very much on the projected profit where I use 3:1 for RR. that is to say with 90 pips gain, a SL should be 30 pips but a SL not less than 15 pips is applied.
GBPUSD is short at 1.8910 pending on 19th Sep. tp at 1.8810.
GBPUSD is short at 1.8910 pending on 19th Sep. tp at 1.8810.