So I bought a Kompakt from ebay, it said used once. 165 for a HD with the 3 small backing plates and 1 inch extension.
Opened the box and noticed oil around the head. Then the light bulb went off I remembered reading about this issue.
So took the gearbox off and noticed the red seal had a defect.
It wasn't stamped right and had a chunk sitting on the housing which would cock it on an angle causing it to seep. I flipped it over and I hope this does it.
You can see it on the top here.
https://lh3.googleusercontent.com/lN...OA3kj9MA=w2400
and the bottom here
https://lh3.googleusercontent.com/vw...IENRAFeg=w2400
Then I decided I liked the switch better on top. The body this way feels more natural in my hand
https://lh3.googleusercontent.com/JW...vnw-T3Yw=w2400