What I personally would do is much different, so I'll not say too much. These are my thoughts.
Nothing really changes in 5 degree increments.
The software predicts results, but if there's a problem with some of the measurements, you're screwed.
I would work with on axis only. (Initially )
I would rather make a x-over flat on axis, and then measure it two more times at 45 and 60 degrees off axis, to see if it does as intended. If it does, store that x-over information.
If you then want to take another hundred measurements, go for it.
When you get home, and sim some x-overs, you can compare the sim estimate, with the reality of the one real / stored x-over.
The big thing you want, is to have 1k down to 200hz dialed in before you leave. (ie, the woofer to mid x-over. ) Anything else can be done at home if needed. .
