with 10+ years of 89 to 90 segments (mostly on DL; one year of 131 segments) I am well aware of published MCTs and DL's operations at most of their hubs, and I have made more than a few 20-25 minute connections at CVG (and MEM iirc) ... I really don't appreciate what's coming across as condescending preaching after I simply conveyed information about my own travel planning