Now with more meltzone & less mass, v9 is back

it is made of steel (why?)

and it will never wear,
the filament path is comprised of materials & surfaces orders of magnitude harder than any fiber-filled filament. This means the physical dimensions of this hotend will never change. The meltzone will always remain exactly Ø1.80mm. The heatbreak will always remain exactly Ø2.00mm.

After 1000kg of filled filament, your PA values will remain identical.

This structure is stiff,
exceptionally stiff, stiffer than any other hotend that I have data on. If simplified to a spring, the spring rate would be over 1500N/mm.

21 are available, make me some money and you'll see some more.