I met Peter Diezel in 2002, right after Herbert was announced. He would show me and my buddy around in his manufactury and we did a jam session on some of his amps.
He is a very down-to-earth and kind guy and he spent a whole day with us. At this time his amps were more popular in the US than in Europe and no dealer here had them on stock. So we travelled from Vienna to Munich to visit Diezel Amplifications.
Concerning the mentioned Bulls+*t about PTP vs. PCB:
He built his first prototype of the VH-4 with PTP wiring just for reasons of easy development and quick circuit modifications.
Right after the maturing of the design it would be transfered to the highest quality PCB you can imagine. Exceeds ANY PTP circuit in quality, robustness and consistency. He showed me the bowels of the new Herbert claiming the 4,7mm fibreglass-boards he uses beeing at least two times thicker than the boards in Engl Amps eg. Dave Reeves probably would have KILLED for such a stable material for his turret boards in the 60ies. NONE of the pots, plugs or Tubesockets in Diezel Amps are mounted ON the boards to stress the construction mechanically or heat the object. Tubes, plugs and pots and caps are all mounted on the chassis, and if you wish PTP wired with the Boards.
Probably a whole PTP design was good enough in the old days for deadsimple Hiwatt-Circuits and it for sure exceeded first generation PCBs, but for 4 independent channels, 4 effect loops, etc. etc. - the PTP would just be a messy cable salad.
Asked for the PTP-wiring technology, Peter told me about the inconsistency in sound he had to fight with in his first VH-4 prototypes due to the immense complexity of the whole circuit-design. He would never prefer a PTP to a properly designed and manufactured PCB construction nowadays.
By the way. He began in the 80s with modding Plexis and JCM800s.
Maybe I have the opportunity to test lucy (named after "Lucifer" -

- but Im not shure if I want to. I just bought a new Bassamp and I am not lightheaded enough testing this hell-goddes of a +3000 EUR Amp...

...yet.