Nostalrius Begins - Quality wow vanilla realm (1.12)

So i heard today that the winterspring demon is now on a 20 min spawn timer yet i have now done 7 ony runs each with 2-3 hunters wanting sinew and havent seen it drop once.

Its a 25% drop aprox. Took me a few runs aswell

I thought it was 100% drop lol. I got it during my first ony and have seen it every time since.

No apprently its 25% so yer 7 runs for me the last 1 i did some hunter had run it 13 times no drop