When Im out there I always use low boost to keep it safe anyway - dont have dramas with it then, just on the higher boost setting - with a shitload of heat thats all.
There was one bad batch of fuel which sucked also.
I did DECA on the weekend and highest knock was 22
I have spoken to Yavuz about it and he is more than happy for me to bring it in when I can
I just dont have the time and its a very minimal issue!