Yes, the best I've tried - and now use with most IEMs (if they fit) - is Sony's own EP-EX11. They're very similar to the stock, and I find the S size fits me perfectly. More comfy than stock, with the same excellent sound...and they're available in black, which to me looks so much nicer than stock. Z1R benefits from a narrow bore tip, and a deep insert. Also, the Sony tips are among the cheapest on the market, which makes you wonder why the other brands are so expensive...
You can grab some here:
https://www.amazon.co.jp/-/en/EP-EX11L-BQ1-EP-EX11-Earpiece/dp/B0086PXQU2
You made me curious enough to make a quick test of the 4 smallest tips I have at hand:
Reference: included Silicone Tips SS
Fit: with moderately deep insertion the fit is quite comfortable, but the tips tend to slide out.
deep insertion is uncomfortable, moderately painful
Sound: reference, so I will only describe the differences of the other tips vs this one
Final Type E S
Fit is very good for me, they seem just the right size to sit with sufficient pressure in the ear canal to have a secure fit, and the more oval shape compared to the more conical silicone og prevents them from creeping. One ear canal feels a firm pressure, the other one suffers a little, but I have very elongated canals which are tricky to find good tips.
Sound: V-shaped. Bass has more impact, vocals are a bit warmer, similar to the og silicone tips. A touch more exciting and 3D than the OG tips. The v shape is not really pushing the vocals back though.
I also tried MS, they sit less deep and more comfortably but the less deep fit messes with the sound a little. I prefer the S
Spiral Dots XS (regual SD, not the ++ version):
Smaller than the Sony SS, sit securely and only cause minor discomfort, somwhere between the comfort between the 2 insertion depths with the SS silicone tips. Not sure if I am getting perfect seal.
Sound: bass has less impact, mids are more forward, but is a little dry and hollow compared to the OG silicone tips. Also treble seems a little muted. I prefer the OG
second try: Size S
good comfort and secure fit, the round shape makes them sit securely. Better seal.
Bass is back, but this time the vocals feel a bit recessed, treble is more present.
Maybe best comfort but alas not best sound…
Sony EP-EX11 S:
longer than the SS tips, very soft, more cylindrical. Comfort is good, but I kind if feel like pushing them further in because they stick out further. That causes discomfort again. Fit is more secure, don‘t seem to creep.
Interestingly the bass is emphasized but slightly less textured and vocals are a touch drier and flatter, reminds me of the Spiral Dots.
The og silicone tips feel a little more 3D.
Beyerdynamic Xelento tip S:
Fit and comfort is really good for me. They sit more in the first section of the ear canal and feel quite natural yet still secure. Maybe the best of the lot in terms of comfort.
Sound: Vocals are surprisingly a little more recessed than with the og silicones. Bass seems a bit muddier and less defined. Might be due to the soft “coupling“ of the heavy IEM shell to the ear/head.
Conclusion for me:
The Final type E size S seem to be the winner for me. They allow deep fit with acceptable comfort and sound clean, clear, energetic.
EDIT: after this trial I took the Spiral Dots S, Final E S and MS with me and tried to listen with them.
I kept returning to the original silicone SS tip, it is the only tip which is really comfortable for my narrow ear canals.
. However, I must have destroyed to connector in the process as there is no sound from the stock cable. My last ditch attempt at a fix will be to send them to an electronic repair in UK known to repair mmcx, but I somehow doubt this will work out.
