The RK30 2012 model has been reviewed and said to be very similar to the 2011 models. The main difference between the TT30 and RK30 is the highback, so I have a feeing that they'll also be quite similar. The TT30s do seem like they might be a better choice than the RK30s though.
After a bit more looking around, the Union Force might be an option too.
Last edited by TofuSama; 03-27-2011 at 10:41 AM.