Joep Vanlier is currently working on improved versions of the YSFX plugin. For example the sample rate bug has been  removed and presets can now be saved, renamed and deleted.

Manfred Zollner has just released my new tutorial video in German  on his YouTube channel. It  explains my engisch paper "A Tube Amp Modeling Project" and provides some audio samples as well.

The user manual the TWD DLX plugin is now included in the plugins download package.  I hope this helps those  who just want  to use  the  plugin.