Gonna have to try this out =)
This is my config for SRBMiner:
"cryptonight_type" : "normalv7",
"intensity" : 0,
"target_temperature" : 72,
{ "id" : 0, "intensity" : 0, "worksize" : 8, "threads" : 1},
{ "id" : 1, "intensity" : 0, "worksize" : 8, "threads" : 1},
{ "id" : 2, "intensity" : 0, "worksize" : 8, "threads" : 1},
{ "id" : 3, "intensity" : 0, "worksize" : 8, "threads" : 1},
]*/
You are doing two things at once. At top you have intensity 0 for auto and at the bottom you removed one of the */ combo but not the other. You either mine with 0 at the top or make custom at the bottom, not both. Try replacing */ where I have it to try mining with auto settings.
Realized you left a line out. You may have it correct. disregard.
I am trying to pull a bit more than 900h/s on my RX580s. 
