lol eric
I am from your same school, though; I like to write up immediate impressions, and then make follow-ups; really I think it gives people a better picture of the IEM because you are sharing how the sound changes with time, assuming its a BNIB pair, and can talk about what its like coming from other IEMs to whatever you are hearing now, which makes a good reference point because I find the longer I listen to a new pair of IEMs and the more I become accustomed to their individual style and presentation, the less drastically different they seem from anything else. When I had (pre-burned-in) W3s for a while, I listened to them so obsessively at first and did so many A/Bs with my MS400 and X10 that after a while it became harder for me to make out some of the basic tonal differences, whereas the differences were IMMEDIATELY obvious to me the very first time I put the W3 in my ears.
There is an inverse to this, I should mention, which is that some of the much more subtle differences in an IEM or headphone's presentation might not make themselves known to you for a while until you've listened to them or burned them in extensively. Still, I think immediate impressions always help in demonstrating what people should expect when they open the box and press play for the first time.