Just finished the Blaman 2 (creative, right?)
Currently at 2000km and counting, moving at 3500m/s.
When my final rocket ran out of fuel I was going at roughly 4000m/s, that was at around ~700km. My velocity is hardly going down now.
Might upload it later. At the moment it's incredibly unstable and wobbly at launch. We need support struts :/
Also it's 10 stages.
screenshot was taken a few minutes after this post.
