So, I have been pretty happy with the Linksys stock FW for the E4200 (V1). I am getting some Airplay lag issue with iPad + Apple TV. Some users suggest that I up my multicast rate. I don't think the stock FW has this (unless someone can point me to this) so I now need to find a good FW for the E4200. Have used Tomato in the past with a WRT54GL. But the current stock Linksys FW has been pretty good for the E4200, there wasn't a need to upgrade until now. Can anyone recommend a good version? Looking for super stability and multicast. Nothing fancy needed except of course the usual things and 5GHz. Any recommendations?