well, using lan has the probability of causing a lot more dses, as you are sending 2 times the packets.
and just one packet drop = ds.
the funny thing is that kaillera uses udp, which is the protocol used for quick transfer, but does not assure all packets arrive (this is used also for streaming videos) but unlike streaming, if you lose a packet in kaillera, auto ds.
however, with that said, all of us in europe use lan for our matches, and it works quite well, yes it dses more (not near what a$ gets) but it is worth those extra dses in the end.