snapandslide
1000+ Head-Fier
Yep, though Spiral Dots are my faves for comfort, Sony's far cheaper EP-EX11 feel and sound even better to me with Z1R. And you can usually buy them on Amazon Japan too. I also prefer Acoustune's new AEX07 tips to Spirals with the Z1R. The Sony tips tame the treble more and punch up the bass, while AEX opens up the midrange and treble.
I'm very happy with smaller crystals to shove them in the ears, but was curious! Definitely an idea to try a few more in the future!