I am using Tomato on two WRT54GL routers in a WDS setup. Each router is on the opposite end of my condo, probably 30-40 feet apart, but through multiple walls. I've noticed on the Device List page, it's showing the client router at around 33/100 on quality, and -66 dBm on RSSI. Are there any software or hardware (antenna) options that will improve this? Thanks!