Some hams around (DM2JUF, DH7VK) found a very useful tool to get wire antennas up into the trees. It's quite easy to get the wire up to 10 meters and more using it.
I prepared it by connecting a thin string to the ball which then is used to lift up the wire.
I opened this blog to provide actual information of the activation of Rømø EU-125 in August 2009. You may find more information at www.qrz.com as well.