I share the sentiments of others that the shorter stem makes the Equinox incredibly comfortable, easier to slip on and off, and reduces the probability of a refit. The shorter nozzle also provides reasonable, but not suffocating isolation that eliminates driver flex. I can chew, swallow, and move around with no issues or discomfort.
If you are looking into the Equinox then comfort shouldn’t be on your list of concerns. You just need to decide if the sound signature is right for you and the potential synergy with your setup. You won’t be able to alter the sound with tip rolling, but I consider this a huge plus because that’s an endless rabbit hole.
If you get an opportunity, you should try the Atlas as that model uses the 10mm ADLC dynamic driver as well. In comparison, the Equinox offers increased resolution, forward mids, less bass, and refined treble. Please keep in mind that this comparison is relative and subtle, but definitely noticeable over time. I feel like I can listen to the Equinox at a lower volume because the mids are more forward and can steal the show when the music calls for it.
The price of IEMs is being called into contention more often than not these days, but I feel it is commensurate with the level of happiness it delivers. I made the decision to live with the Equinox forever based on my experiences with the Vega and Atlas. I made the right decision for me and have no regrets, despite the fact that I know there will be more CFA customs in the future.