The Essential was first bolted by Klaus Buechele in the mid 80's. In the middle of the 90's Markus' friend Werner Thon re-bolted the route and along with Markus both made several attempts to climb it without success.
Markus has now sent the project and describes the route in the following words:
"This is a 3 star route in a classic area. Technical, small crimps, bad footholds and of course not chipped".
Full report and large photos at the Moon Climbing Website.