Will I ruin my chance at IB?

Hey everyone. So, I recently made a post here about which school to pick for undergrad (SSE or HSG). A lot of people told me that it would be almost impossible for a german to recruit from SSE and that I should therefore pick Sankt Gallen.
Over the last few weeks though I had a chance to look at both schools. And studying at SSE just seems a lot more inviting to me.

1. I think the student life at SSE will be far superior. I also really like living in big cities.
2. I feel like I could really benefit from moving to foreign country and gain more international experience.

Now on the other hand I really want to make it into IB. Would going to SSE really ruin that chance for me or would it just make it a little more difficult? If there are any internationals that have experienced recruiting at SSE I would appreciate an insight.