yes... If you turn on the lap feature, then the high beam toggle will "reset" the lap. This is a real neat feature if you are riding around and want to be able to download just one particular piece of road or turn. Or say you are at a light, toggle the high beam, then when you go green and go thru the gears it is keeping this separate from the previous bit of info.
When you get home and download, you can then look at just what you want and it keeps the screen clutter down to just the timeline of that lap, otherwise you load up the entire run and you must use the magnifying glass a bunch.
I REALLY wish the DDA would output A/F ratio. You could see based on revs where the bike was running at. I mean, other than that, it's really something that would only be useful at the track.
It does also show good info on DTC in relation to % of throttle/speed/amount of DTC applied. Or just to relate how much throttle is really being used versus how much you "think" is.
If I was buying a second SF, I would get the base model, and throw the Nemesis 2 full system at the bike.