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JJ Bruno

JJ Bruno

Wingsuit BASE jumper (since 2018) and software engineer who built ExitEval, an app for evaluating exits, laser profiles, and FlySight tracks.

Sep 1, 2026

3:45
When people talk about, you know, a good exit, What do you think they're usually measuring incorrectly?
3:51
I mean, the perfect exit data-wise is like the million-dollar question, right? I think the most common thing I hear lately is the, what's your cross one-to-one number? Which is basically if you put an arbitrary 45-degree line from the exit, at what point do you cross that in your start arc? So, for example, like, you know, 200 meters down by 200 out.
4:16
And using that as a measurement.
4:19
It has value.
4:20
It's just a little bit late in the start arc for modern suits to be super relevant.
4:25
I guess what I mean by that is the suit has started long before that point.
4:31
Usually you're probably hitting your cross at anywhere between 8 to 11 seconds in flight, whereas the start, in my opinion, is within the first few seconds.
6:45
What's the biggest mistake people make when interpreting their in-flight data, do you think? I think that

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