Servo control module

[tbone4298]

I have been watching videos of European converted Schaeff mini excavators that had hydraulic like movements of servos that were not converted to continuous rotation. From my understanding of the one translated forum thread from 2010 they were using a CTI Steller Weg-Tip-Delay module that would hold the servo in it's current position. It also appeared to be able to adjust the servo travel speed. I was wondering if anyone has used or heard of these as the forum posts alluded to the company not selling to customers outside of Europe. Here are a couple sites that have the item listed.

http://www.cti-modellbau.de/CTI-Servo-Steller/-83.html
http://www.hobby-lobby-modellbau.com...Tip-Delay.html

and the build forum post
http://www.rc-baustelle.de/thread.ph...a406da92c44af0

I appreciate any advice.
Tim