So, I heard that there are two types of 250Gb 7200.10s out, the older ones (that are lower density and I think aren't as quiet) and the newer, single-platter versions, which are supposedly renamed 7200.11s but for some reason Seagate didn't rename their 250Gb models to reflect this. How much truth is in this, and does OcUK only have the newest stock or would there still be a chance of getting an older model?