> So I assume that the --.--K/s in the second run indicates > that wget did > pull from the squid cache, right?
The easiest way to check is to look at access.log and the 4th column. If it says TCP_MISS/200 then it means Squid is getting the file directly. if it says TCP_HIT/200 or TCP_IMS_HIT/304 then Squid is getting it from the disk cache or memory cache, respectively.
