APM + SharePoint 2013

Well, I tried adding an intermediate virtual server which applies the stream adaptions before handing it over to APM for the rewrite in the portal application. Unfortunately I cannot get this to work properly. It made sense to try and fix the unicode first, before handing it off to APM. But I keep getting the wrong URLs in the response content on the client. I now tried to publish sharepoint in an APM+LTM combination, so the rewrite is handled exclusively by my stream profile. This works. But since sharepoint is no longer a webtop application, I need to configure SSO with my other access profiles. I believe this cannot work because the other access profiles use webtops and the sharepoint profile uses APM+LTM. The single domain cookie doesn't seem to work.. grrrr