Made my apfelwein according to the great EdWorts recipe with the exception of a different yeast. I used the only open primary I had which is the one that comes with a coopers kit. Big honking job. Anyhow I have too much headspace. Been 2 weeks today since the start. After reading other posts on headspace being a bad thing I need to do something I'm sure. Should I fill it on up with more juice now or what? Thanks in advance.