Still can't decide between an Arai chaser or Shoei XR1100 though!
Spooky – I have both of them!
I’ve had the Chaser longest, it’s my second after my first got fully crash tested back in 2008

Chaser – noisy for starters, even with everything correctly fitted and adjusted, you hear a fair bit of wind noise, so plugs are a must for long-ish rides > 50mph!
It’s very comfy inside, it feels like slipping your head into something velvety soft, but even the Chaser’s low-spec insides (against the other Arai range) is good at wicking away sweat during the hotter days (roll on those!!!).
The vents do the trick during the hotter times and the chin vent helps clear fogging during winter, the visor/eyebrow vents are so-so I found; they don’t really let that much air through in the summer months, but are supposed to be handy if you wear glasses and those fog up during winter (not tried that yet).
Shoei – the insides feel firmer than those on the Chaser, and that’s not just down to being newer, but I liked this as it helps stop my glasses slipping forward slightly, but this firmness does mean my earphones fall out when it goes on, but that’s not a huge issue.
As with the Chaser the visor change is fast, but with the XR1100, it self adjusts to fit flush. With the Chaser you have to take the side pods off and loosen the four screws holding the two retaining brackets; then push down on the visor and do them up.
The visor has a locking mechanism on it that also acts like the tab on the Chaser, so that it cracks the visor open a fraction to clear up fogging, the lock may be of use if you’re worried about the visor being ripped up/open during a crash I guess.
A chin curtain can be fitted! This was the reason for deciding to pick up the XR1100 as an addition to my Chaser

Both helmets are extremely well made, the paint finish on both seems equal, to me the XR seems a tad lighter, and I’m hoping it’s shape may offer better side-wind stability when giving it beans on an empty road – the Chaser has been caught a couple of times and its pretty forceful.
I guess it will boil down to costs, as the Chaser is anywhere from £250 - £320 and the XR is £380; most places were also completely sold out of XRs when I ordered mine.