kricheck,
Just to follow-up, I downloaded the .604 update file that someone (Webst3r) posted (
.604 update.zip download. - Droid Forum - Verizon Droid & the Motorola Droid Forum) and checked the downloaded file size vs. the references did match the ones in my logcats and I did see kazillion

references to the actual file size (19,391,229). There was (I presume) a line similar to the following for each file contained in the .zip:
"
D/cUs ( 1304): CusSM.handleWSDownloadResponse: read 447229/18944000/19391229 isDone: false"
The line that I reported earlier, the size in must be something else / related (
D/WSBase ( 1304): doRequest(): upgrade/2/download_upgrade resp length: 19415120).
Thanks!