As with any product, the more time you put into refining it, the better the end result. Reference designs may go through several revisions before they will reach optimal performance. That said, as time passes small issues that can cause problems in rare instances are isolated and solutions are implemented on an ongoing basis to make products better.
Corsair has shared with us their approach in fine tuning their PCB design for the new Force 3 and Force GT products. We've been told this approach increases the clarity of the timing signal and thus should enhance the overall reliability. Corsair has also made some other changes to the Force 3 and Force GT lineup since we reviewed the 120GB capacity sizes of these models.