A Skagit is a shorter head than a Scandi. With a Skagit you'll have to retrieve more line- advantage when fishing stillwaters, also you'll need less backcast room behind you. Skagit are better for bigger flies, but they tend to make noisy presentations. Scandi lines - a little longer head than Skagit - are more versatile.

I like shooting heads myself. That way can use the same reel/spool.

BTW, with a Skagit line you're casting style will be a little different. You'll let your anchor settle a bit more on the water. With Scandi lines you tend to use a shorter, faster casting stroke, applying more power with your bottom hand.

I fish all types of flies with my Scandi line.

Randy