Because of the deadline I managed to convince my German friend to bring a TarpTent to Belgium next week.
I bought a TarpTent StratoSpire 1 from a German dealer called Trekking Lite Store (http://www.trekking-lite-store.com/trekkingshop/).
They offer a broad range of SUL tents and not just the big commercial brands such as MSR. TarpTent, Six Moon Designs and Terra Nova are some of them.
At first I was looking for a SMD Lunar Solo 2012 but then heard quite some negative feedback concerning condensation. Also, the German shop didn't have it in stock, and non of the other European retailers do.
My sights turned to TarpTent Notch, but unfortunately this tent is also unavailable in Europe.
In the end I went for the TarpTent StratoSpire 1. This has a bigger footprint than the Notch, which makes it possible to sleep with two inside. Strangely after ordering the tent it disappeared from the Trekking Lite Store webshop.
@Franco: I meant down instead of wool. You mentioned the scarp 1, how does that compare to the stratospire 1? I'm guessing Stratospire is lighter and has more room but is less solid in bad wheather conditions.
@Rod: Thanks a lot for that link, it led me to the Trekking Lite Store website.
@Wes: Good feedback, but most of those tents are more than 1.5kg making them a bit too heavy for my liking.
@Stephen: You're absolutely right, Belgium has the worst outdoor shops ever :D Very small stocks, only the big brands and way overpriced. Thank god for shipping services!
@Ole: Thanks for the suggestion, but this tent was really pricey compared to the other ones with similar specs. Also quite hard to get a hold of (the SUL).