I have been reading about how to improve my coding style. The LabVIEW style book is a really helpful in this respect. One of the suggestions in that book is to use more sub-VIs to improve modularity, and consequently reduce the block diagram size.
My doubt is if that won't add to the VI execution time due to the sub-VI overheads.
I would also love to hear the other methods you all use to limit the block diagram to one screen.