resize /usr

OK so now that I have been saved from my stupidity, let's try to prevent more
stupidity.

$ df -h
Filesystem Size Used Avail Capacity Mounted on
/dev/sd0a 1005M 245M 710M 26% /
/dev/sd0h 62.9G 21.7G 38.1G 36% /home
/dev/sd0d 3.9G 302K 3.7G 0% /tmp
/dev/sd0f 14.8G 11.6G 2.5G 82% /usr
/dev/sd0g 19.7G 1.1G 17.6G 6% /usr/ports
/dev/sd0e 11.2G 56.1M 10.6G 1% /var

Above is my current disk setup, what I would like to do is shrink /usr/ports to
grow /usr.

So from what I get growfs will work if I have space after /usr. So can I shrink
/usr/ports and move it back so there is space after /usr or do I need to
completely drop and recreate /usr/ports?

Ken