I've done the OS X 10.8.5 combo update and it is of course having the same problems as the .35 driver did.
However I'm sad to report that after rolling back to .22 I continue to have exceedingly bad ping problems:
64 bytes from 192.168.0.1: icmp_seq=170 ttl=255 time=1.566 ms
64 bytes from 192.168.0.1: icmp_seq=171 ttl=255 time=2.887 ms
64 bytes from 192.168.0.1: icmp_seq=172 ttl=255 time=2.505 ms
64 bytes from 192.168.0.1: icmp_seq=173 ttl=255 time=3.355 ms
64 bytes from 192.168.0.1: icmp_seq=174 ttl=255 time=1.354 ms
64 bytes from 192.168.0.1: icmp_seq=175 ttl=255 time=1.336 ms
64 bytes from 192.168.0.1: icmp_seq=176 ttl=255 time=1.554 ms
64 bytes from 192.168.0.1: icmp_seq=177 ttl=255 time=1.633 ms
64 bytes from 192.168.0.1: icmp_seq=178 ttl=255 time=2.655 ms
64 bytes from 192.168.0.1: icmp_seq=179 ttl=255 time=1.483 ms
64 bytes from 192.168.0.1: icmp_seq=180 ttl=255 time=3.474 ms
64 bytes from 192.168.0.1: icmp_seq=181 ttl=255 time=2.608 ms
64 bytes from 192.168.0.1: icmp_seq=182 ttl=255 time=2.726 ms
64 bytes from 192.168.0.1: icmp_seq=183 ttl=255 time=2.948 ms
64 bytes from 192.168.0.1: icmp_seq=184 ttl=255 time=3.214 ms
64 bytes from 192.168.0.1: icmp_seq=185 ttl=255 time=0.968 ms
64 bytes from 192.168.0.1: icmp_seq=187 ttl=255 time=1.528 ms
64 bytes from 192.168.0.1: icmp_seq=188 ttl=255 time=41.104 ms
Request timeout for icmp_seq 189
64 bytes from 192.168.0.1: icmp_seq=189 ttl=255 time=1953.608 ms
64 bytes from 192.168.0.1: icmp_seq=190 ttl=255 time=952.555 ms
64 bytes from 192.168.0.1: icmp_seq=191 ttl=255 time=1952.998 ms
64 bytes from 192.168.0.1: icmp_seq=192 ttl=255 time=951.939 ms
64 bytes from 192.168.0.1: icmp_seq=193 ttl=255 time=117.030 ms
64 bytes from 192.168.0.1: icmp_seq=194 ttl=255 time=951.039 ms
64 bytes from 192.168.0.1: icmp_seq=195 ttl=255 time=1950.731 ms
64 bytes from 192.168.0.1: icmp_seq=196 ttl=255 time=949.546 ms
64 bytes from 192.168.0.1: icmp_seq=197 ttl=255 time=113.968 ms
64 bytes from 192.168.0.1: icmp_seq=198 ttl=255 time=1.720 ms
64 bytes from 192.168.0.1: icmp_seq=199 ttl=255 time=2.803 ms
64 bytes from 192.168.0.1: icmp_seq=200 ttl=255 time=1.230 ms
64 bytes from 192.168.0.1: icmp_seq=201 ttl=255 time=3.345 ms
64 bytes from 192.168.0.1: icmp_seq=202 ttl=255 time=2.940 ms