Can someone provide me with a quick primer on the differences between shooting heads and multi tip lines like Rio's Versitip? What are the advantages and/or disadvantages? Are they advisable/usable/practical in any line weights below a 6 wt? What recommendations would you have for a multi tip system? RIO, SA or Orvis?

I like the idea of being able to fish different depths with just one line and one reel/spool and have been thinking about getting one of the multi tip or shooting head systems, but want to make sure I understand the differences, etc... before pulling the trigger.