@nealh: Got your PM and will get you some comparative measurements. Basically I told the guys there that I thought Vega was pretty bloated at first but did evened out once I found the right DAP to pair them with. After that, they were good. I just didn't rave about them. You have to rave about them, or is like you're invading their thread. I said I liked them, just that they weren't the end all, be all for me. It was like I'd insulted their wife or mother, lol.
Re: LZ-A4...
Yes, I'll try different tips. It's not so much comfort as the housing shape + straight nozzles + weight don't work particularly well - especially for my right ear. They're always on the verge of breaking seal and have to be positioned in an awkward angle in that ear in particular to seal at all.
Now i don't mean to say that this will be a problem for everyone. It's obviously not, or there wouldn't be so many people here expressing their appreciation and urging me to try and find the best fit. I guess part of my problem is that I have many pairs of IEM, and many of those are much more ergonomic (at least for me). That makes me less tolerant of IEM that don't take ergonomics as seriously.