Let's say I've beaten my brains out over the obvious things to stabilize a tenuous link on a partially obstructed shot with sporadic interference sources from consumer appliances. High-gain dish on each end horizontal polarization, power maxed out, rate locked to 1meg. Any additional tweaks I could make to try and improve things further? Still getting some packet drops, about 10%. Long preamble or short? Using mixed now, locked to B or G? Any of these EDCA AP or EDCA STA parameters on the Advanced page I should try?