Hi Marmot,
I am using it on 2019 Alex Duetto.
The different is control, not fine enough.
Let's say equally turned to a quarter turn, one produces about 3 something ml/s, another produces 8 ml/s.

I don't know whether Coffee Sensor has changed it recently or not.
I do like the swivel on Coffee Sensor's better.

Thanks! In that case I will look out for the Profitec kit should I get a good offer.
I have enough control for the preinfusion but when I want to do a declining pressure curve the pressure will stay high until the last few millimeters of closing the valve, so i have to close it very carefully in the end.
I also wanted to swap the handle on the coffee sensor kit. I guess you can just get a screw with the same size and then attach a wooden handle of your choice or something else. It will surely help having a longer handle to better fine-tune the flow.

Since I have two FC kit, I swap out the handle using the longer Coffee Sensor'w handle. the ball shape handle that comes with Profitec FC kit is not to my liking.

Duetto's brew group mounting is above the face plate, so I can spin freely.

Yes, that's the great thing with the Duetto and the high position of the group.
I just browsed on Aliexpress and got a 40mm M5 cone bolt and a 20mm M5 to M8 conversion so I can then screw on an M8 walnut handle. I hope it works

That is some serious mod, wish I am that handy

It will be alot easier than installing the flow control kit. I just have to screw the parts together.
Seems like you have the same generation of Duetto like me

To be honest, installing the kit was easy, the gauge is a bit harder due to seal tape.