I want to use a 14 dbi panel antenna (from Hyperlinktech) with my Linksys WRT54G version 6. I understand that I need to configure the firmware to disable diversity and have it use just one of the antennas to transmit and receive. Is there a way to do this with the OEM firmware? Or is that only possible with a third-party firmware? If so, which would you say is the most user-friendly? (The antenna tweak is the only thing I need to do.) Thanks.