I just got Tactrix 2.0 and Ecuflash and Evoscan. I really like the numbers on Evoscan, but what setting am I supposed to be using?

It logs data on various settings, but which is 'correct' for Evo 8?

Do I have to have a wideband to use the 'dyno' built in it? So far the only number I've seen is 165HP and the line is just tiiiny.

And finally, I can see playback in a graph, but how do I use those really need widgets? And the gui gauges?