@bluefirestorm
What do you mean by "shrink"? Do you mean a) Allocated space within VM, even if deleted, will never be released to the VM-use (like happens if you have even a single Snapshot, nothing is really deleted) OR b) You cannot use manual "shrink" command, which is basically only needed when you revamp your VM (or rather its copy) to a new use scenario?
The item a) has a huge meaning. b) only in limited cases. Pre-allocated space is a huge disk spender anyway, if you are dealing with lots of data - also files like 150 GB are not nice to deal with.
