waldmanc :
Is it worth trying to raise the timings to get to 2400 or will that negate any potential benefits? I'm pretty happy with my 2133 for now and other overclock to the system...atleast for my first time doing it.
Try this, set the timings to stock, run a benchmark like 3DMark 3 times, with a reboot after each time, average those scores to get a baseline.
Then overclock to the 2133 and run same benchmark 3 times, average it. See what the improvement is. Then you can see what benefit you may get with another overclock. If you went up say 400mhz and you got 1% boost, then you can assume that another 400mhz will get you another 1%, although that does not always scale that way. You may get 1% and then only .5% for the next 400mhz in speed.
I would not try to push things into where it's just barely stable though even if you do manage to go higher, it will stress out the components and you have a chance of damaging them or shortning life span. The extra bit of speed is probably not worth the possible drawbacks, but you should check the benchmakrs anyway from stock to 2133 just so you know how your system runs.