Well, Im no pro driver... yet

so I dont think Id get the issues you may have had, but then again I don't really care about the R4's current 'problems'
I haven't heard of anything going bad about the 733, but then again I haven't gone through the thread either

Another thing steering me to the 733 is the price -.-
$680 at least for the R4 VS. $480 for the 733
As much as I would love the latest-and-greatest, it will most likely not make me any faster of a driver, at least not until I get my setups right.