Airflo Skagit Scout
Compare the line designations and you'll see that the Scouts are designated heavier. The lengths are also a tad longer.
Tom Larimer told me that the Scout designations are around 30 grains less than a standard Skagit. Comparatively, the difference for Commandos is generally around 100.
I have a 300 Commando that I'll be comparing against a 300, 330, and 360 Scout. I'll post my observations here. The same switch rod that I'll be using is wonderful with a Skagit Switch 390.
On a side note, the Scouts are $5 more expensive than not just the Commandos but the Skagit Compact and Switch G2s as well. Less is more, apparently.