Bad Draw

I was very excited to receive my new Savinelli Fuoco 111KS last week, but trying to smoke it over Easter I was left disappointed. I have a small collection of Savinelli 111s and in my (somewhat limited) experience they all smoke great. However this new one seems to have a very bad draw. It opens up sometimes but then clogs up again, and even when it is 'good' it performs a lot worse than my other ones. The end result is that I need to puff very hard to keep it lit and end up burning my mouth a bit.
When I draw on the pipe when empty it still feels feels clogged, but when I take it apart and try the draw on each part individually it feels pretty ok. Also peering into it I don't really see anything suspicious which would obstruct the draw (like lint etc.).
Is it just simply a matter of breaking it in, although I can't remember my other new pipes ever being this bad in the past? Or perhaps I could try a hot water wash with a bristle cleaner? I don't really want to (or really have the technical experience to) start drilling

I've been trying with several normal pipe cleaners, and nothing. But after using a bristle one, a lot of fluff came out after blowing, so I hope that's it!

It works fine now, it seems it was just some extra stubborn pipe cleaner lint

@Dot I always toss the filters
Now, it seems the pipe is smokeable but still the draw is a lot tighter than on my 4 other pipes of the same model. When drawing on just the stem when it is disassembled, it 'whistles' quite quickly compared to the other ones. Is there anything I can do? My senior pipe reamer for example has a drill thing on in, perhaps that can be used to open it up a bit more? Or is it just a bad one?

I am pleased to say that after breaking in it smokes fine. It went through a phase of things getting stuck a few times per smoke, but it seems that the tar (or whatever) residue has 'lubricated' it so that this no longer happens