Asking if it is SI, means that (at least to me) you may already be concidering it as SI. If you have to ask, then it most likely is.

I had to ask, and in my mind I already considered it to be SI.

But that's my experience. My pdoc doesn't consider it SI, but to me and my T it is. It's how you look at it.

Then its time to find some one that does.