Thanks for posting this. But trying to make sure I understand...
1) For the Port mod, Did you cover the port with the silicone o-ring BECAUSE you poked too big a hole when trying to use the pin? If "unpoked" would one still cover that vent with an o-ring??? Wonder if you could have covered it with micropore tape instead of the o-ring (IF, After trying to prick the vent with a pin, it opened too large.)? This seems like trial and error is needed.
2) Are the Blue Tips From a set of Tin HiFi T2's ? Would you expect other foam tips to work?
Lots or mods needed, but the base earphones are not so expensive...
The beauty of the Walkers is that their sound signature is over the top, across the spectrum, in stock form. As it's always easier to take away, than add, to a sound signature, the Walkers allow each person to customize the low end, mids and the uppers to their wants.
My mods are specific to my ears and my likes. Some will prefer the taping to have more pass thru, others will be satisfied with the pierced port or combinations of both.
1. You are correct. I could've just covered the port with the o-ring (or tape) and avoided piercing the port cover. But going through the sequence (laid out by
@james444), the "poke" came 1st. Microtape would've been another solution and I would have gone that route, if the o-ring didn't work. But the tape would look shoddy, IMO.
2. Yes, the blue tips are from the Tin HiFi T2. For my ears, the shorter Tins gave me the best fit. Yes, other foam tips will work, for other ears. Unlike my other bullet style shells (Moondrop Crescents), the girth of the Walkers allow me to get a better grasp of them, for seating and I don't have to wedge them down my ear canal, as I do the Crescents.
The initial mods took all of 20 minutes, due to trial and error. 25% of that time was spent in wrestling the o-rings. When I took the pics, the left earpiece's tape job got skewed, when I removed the Tin tip. Re-taping only took a minute.