LOL, I suggest that you go ahead and poke him. They are usually pretty good sports! This one inspected my hoses up close and approved of my rig:I'm pretty sure if DGX posted a tech tip that said "Next time you see a honking big moray eel poke him in the ribs a couple of times because they like to be tickled.", I would do it.
Disclaimer, they did NOT say this
However, the industry standard for all scuba hoses is five years and I was using DGX and XS SCUBA (MIflex) as examples. I am not going to copy out dozens of similar recommendations from multiple companies and manufacturers. That folks like to stretch that five years to a few decades, well, regardless, the recommendation remains every five years. This kind of falls into the same typical recommendation of servicing regulators every year (sometimes two), who does that?
Any regulator that I would use for overhead/deco is darn sure going to have hoses on it that are less than five years old and that are in good condition and for which I know the history.
James