[cs363]

It's certainly not normal, slipper clutch doesn't make any difference to the actuation.
Is your cable properly adjusted, cables all moving freely and not binding on forks etc? The little swivel on the clutch actuator rod (on the clutch cover) isn't jammed up or anything like that?

 

[cs363]

Thanks to everyone who replied to this post.

Just to wrap it up, and for the benefit of other 2017+ Supersport owners, I found a forum dedicated just to this model "Supersport939" and put my issue to them.

Multiple owners assured me that it is very characteristic of this model before the oil warms up. I tried a gentler take off towards the end of my last ride and guess what? They were right. I had a progressive linear clutch! Prior to that, even though the bike was warm I wasn't taking the chance of stalling in traffic, so I was doing higher rpm starts with a fairly quick clutch release therefore masking the improvement as it warmed up.

Relieved to find this out and now totally happy with a great bike!

Well that's interesting! What sort of oil are you using?
I rebuilt a damaged 2018 Supersport S a couple of years ago and it didn't have this issue, though I did change all the fluids etc., before riding it. I used Penrite MC-4ST 10/40 for what it's worth.
Anyhoo, glad you're sorted

 

[cs363]

Actually, that rung a bell in my subconscious regarding a clutch issue on a Monster 821 a while back so I dug through all my reams of Ducati service bulletins and manuals and found the attached which might be of interest to you.
Although personally I'd probably give the Penrite a go before delving into this procedure seeing as it's easier, cheaper and the stuff is grown on your backdoor step! 😁