Thanks for the feedback Scott. It's not practical for us to increase this limit given the way the route collections feature works at present, as all routes are loaded automatically every time the collection is viewed, so 30 is already a push. However, this is something we're planning to redevelop when we get chance.
I am organzing a 200 mile, 36 leg team relay race. I woudl like to be able to add all 36 legs to a single collection but am limited to 30.