I have my WRT54GC on the wall and I noticed that when I mount it at an angle such that its a rhombus on the wall with ports facing bottom left(so to speak) my SnR improved by 6 to 10 dB depending on where exactly I play my laptop (with 2915ABG). Used netstumbler to do the measurements. How exactly is the antenna laid out? I know it's omni but still. Also regardless of what anlge it's at, if I open the antenna hatch without connecting an antenna to it, I lose about 20dB...what gives? Is it really using both antennas at the same time?