I haven't used the Rio lines but they are based on the custom made multi-tip systems developed in steelhead country years ago. Their special feature is that they combine a weight forward section into two types of line, either floating/intermediate on one half and sinking on the other.
The multi tip comes with a floater, clear, and sinking tips. You can thus change things around with one spool.
For steelhead and salmon fishing with Spey rods and single handed rods, they are indispensable. I chose not to use them for stripers because of the following reasons:
a) I only switch between two lines and I have a spare spool
b) I did not prefer to have the loops going through my guides when stripping a fly close to the leader for a chasing fish
My multi-tip system was one I built for steelhead. Roughly, you take a perfectly good fly line and cut the WF section in half. Then you add loops so it can be restored.
You then go buy a sinking type IV shooting head (30'), and cut it 12' / 18'. Loop those ends, now you have three tips to choose from.
Here's how to build one if you are interested in that route: