This is our go to head here at the shop for light line fishing. Just over thirty feet, these heads are great for rods from 11.5' - 13' especially when fishing lighter tips or floating leaders.
If you've never cast a Scandi line before, this is a good introduction because the shorter length (compared to 35-50' heads) creates a punchier taper that really generates power.
With a rod around 12 feet, this head will cast just fine with a standard mono steelhead leader at 12 feet. If you're using a 12'6"-13'6" rod, just add three or four feet of Maxima to end of the leader for a total length near fifteen-seventeen feet. This will really help keep your anchor, especially if you're used to fishing a Skagit line and sink tip.
Lastly, these line do work well with lighter sink tips. The most applicable would be Rio's Medium Versileaders and they just cast like a dream. Your fly size will effect how these cast as well, so keep to size 3-7 traditionals either unweighted or lightly weighted. Casting Hoh Bos, Fish Tacos, OCDs and similarly unweighted shank flies are killer on these heads too.
It's also a really nice options for Trout Spey rods in the lighter weights, for fishing soft hackles and other emerger patterns up near the surface.