OK: arrived and tested.
First thing: LUMINLAYs are really worth it. Simply fantastic. Second: the colour as it seems from the picture above is blu. It's not, in real world it is INDIGO BURST. Problably the light was casted in the photo in such a way that the burst do not stand out, and colour's temperature shifted towards blu, eliminating the Violet nuance.
Slap tone is impressive: with both pickups in parallel, each individual set in parallel, it resembles the sound of Alain Caron (just the sound). The electronics 3-way adjusts the mid scoop as needed.
The tapping tone is wonderful, with a bit of T-Rex Room Mate reverb it is really sweetest.
Finger tone is so veratile that I cannot just state any preference, because there is almost any usable tone a Bass Player can imagine. From Jaco style, to P tone, to Stanley Clark tone. It is puzzling actually, too many sounds available to choose from. All USABLE, I mean: there is no "stupid" tone you can get but you cannot use (as it happened to me with other basses, active electronics).
I lowered the action to 1,8 mm in the B string, 24th fret. No annoying buzz.
The output is even from string to string, and there is no chorus effect on the upper octave in the B-E strings.
The neck is sleek, but feels rigid and very stable. I will test the legendary Dingwall stability against weather in Italy with time.
What can I say: a bass provided with any feature that actually works in real world, and where everything is just there. The bass is really well designed.
I will post another picture showing the intresting Indigo colour and the lunminlay dots glowing.