can one bend a VERY thick trunk on an old Scots pine?

Tis is a Scotspine, Pinus sylvestris which was collected in Scandinavia in 2008. I got it in fall of 2009 and just stored it over winter. Today I tried to bend the trunk a bit and found that it was possible to get bent much more than one would have ever imagined. I din nothing to the trunk like carving, hollowing etc., just brutal bending. The tree is very old and the trunk is about 10 cm thick, 4 ". I will keep the bending tool on it for a while and turn it a bit more every day. We'll see how far i dare to go. Then the trunk will be fixed with wire an left alone for a couple of years.