I started with the Scout and moved to the Springfield. Could not be happier. The Scout was/is a great bike, but no comparison. Comfort, storage, passenger set-up, Springfield takes it all. My biggest concern was if I was going to be able lane split with as much ease, and make those sharp turns, I do a lot of mountain riding as well, and am always on the look out for curvy roads. The Springfield in my book handles better, perhaps because I just feel more stable or the fact that I now have ABS, but the SF maneuvers so damn good! As far as lane splitting, I do it far more now than I did previously with the Scout. Distance is not really an issue, I feel planted and stable, and the quick flick-ability with the SF, I never worry about positioning. I swear I feel like I can handle as good as my friend's CBR, though not true, I do scrap and get pretty damn low on the SF, more so than I ever did on the Scout.
Wife and I just got back from our first day trip together riding 2-up. I know it would not have been as nearly enjoyable for either of us on the Scout. Not hating on the Scout, I love that bike, I wish I could have kept it, but gotta pay the house off before I own 2 bikes. Another 10 years, I'll be buying the latest Scout.