Thanks again for all you enlightening comments: this is a great community. Just to let you know: I revised my order and asked Mick Maloney to build me one of his new Grange preamps with the option to switch between 6NS7 AND DHT circuits, which will allow me to go euphonic whenever the mood strikes. The production will take a long time but I hope I will be able to open a box from Down-Under before Christmas. Meanwhile I will keep listening to my The Truth preamp from South Carolina.
Again, thanks for this lively discussion.