Braekfast,
These are the drivers that I played with prior to the 64Ohm Comp Ti:
https://www.aliexpress.us/item/3256803038841161.html
https://www.aliexpress.us/item/3256804840676782.html
https://www.aliexpress.us/item/3256803857529689.html
https://www.aliexpress.us/item/3256803857532661.html
https://www.aliexpress.us/item/3256803840251896.html
I'm not so good at recognizing them by the "glue" or the "dot" or whatever. And again, while I'm disclaiming, let me repeat that I am very much at the beginning of the DIY hobby, having learned to solder and add/remove tuning horseshoes to/from drivers and shell and that's about it! (Others here may remember me as the "dog ate my earbuds" guy, and after replacing the cable I got the urge to try some buds from scratch.)
I'm sure I haven't tuned any of these to their full potential, but when I did try the Comp Ti (
https://www.aliexpress.us/item/3256803857505010.html), based on the recommendation from
@biocomplex, it was immediately a step above
to my ears. And in fact, when I performed the simple acts of a) removing the horseshoe from the driver and b) putting a medium foam horseshoe on the MX500 shell, it was quite amazing. That's $20 of material (driver with shells plus cable) and 20 minutes of time, and I swear it sounded better to me than any commercial bud I'd ever heard. Emphasis on "commercial" because I have a Riku Archer and a TGX Serratus and I'm not talking about those. But better than the Monk+, Qian39, X6, PT2021, Faaeal Rosemary, and (here's where I go out on a limb), the Fiio FF3. Even going bass-to-bass against the FF3,
to my ears it's not even close.
(
To. My. Ears.)
It is a darker bud than most (as you'd expect if it outbasses the FF3 for me), and maybe I just learned that I like darker more than I thought. But no matter what, it's one of only three buds (with the Riku and Serratus) that I listen to regularly. The low notes on a piano are particularly great.
To answer your question about the wooden shells, I did try these (
https://www.aliexpress.us/item/3256803848420705.html) with the same driver. I wasn't as happy with the results, but then I tried drilling small holes for more ventilation. A definite improvement, but there are probably more steps I can take to get even more out of them. That's why I was so interested in your original post, because there are some people here who know WAY more than I ever will and I was waiting to hear their advice.
In summary: Try the Comp Ti's!
And I'm looking forward to hearing more from you and everyone else here!