I am sorry Kitz but I do believe this DLM resetted to open profile is now all changed. Openreach engineer did show me his tool kit Open Profile. I do believe all DLM resetted are now in low interleave depth to stable the line as fast path are no longer in open profile.
His kit may say "open profile" or he may have used those words.
It isn't an open profile though.
"open profile" meant wide open, no error protection, i.e fastpath.
They don't go to fastpath with DLM resets anymore.
Huawei lines haven't for years. ECI lines don't either since recently.