I have never looked much into SSD Performance issues after I got my drive with exception to a few utility programs that measure speed. Results were fair and matched the OEM specifications. I did the most recent firmware flash at the time and haven't looked back. In the between time I have moved some fairly large files - some with many small bits of data, and others with larger chunks. Before, I used Seagate style 7200 RPM HDD like most people, never seeing more than 70mb/s speeds and maybe 90mb burst (or there abouts). With the SSD, I write to the other HDD(mechanical) at 150mb burst, then it drops consistently and hovers around 64mb/s. This happens also in similar fashion(with a smaller burst) when moving files from the HDD onto the SSD. Otherwise the drive works great and as intended. Is this common? Additionally, the SSD is connected to 6G Sata and all data transfer is through the motherboard, not externally.