Newbie: -tsize vs -j

Thanks for star - looks like it will work for my file archiving
requirements.

Is there a way to have the -tsize value be evaluated after compression? 

Using this command: 

/opt/csw/bin/star -cj -tsize=700m \
-multivol -dump -M \
-C=/usr \
new-volume-script=nf.sh \
-acl -artype=exustar f=f001 f=f002 f=f003 f=f004 f=f005 f=f006 f=f007 \
level=0 -time .

Produces the following files:

 253963147 Apr 14 10:58 f001
 180915793 Apr 14 11:01 f002
 257749914 Apr 14 11:05 f003
 279395825 Apr 14 11:10 f004
   1580019 Apr 14 11:10 f005

I was expecting each full file to be 734003200 bytes. 

Also, is it possible to restore a multi-volume archive without some of the
volumes?  In other words, if a media error prevents part 2 from being
recovered, will parts 3 + be recoverable?


Regards,

Jared Davis
Davis Programming, Inc