I've only been through the Eisenhower Tunnel once and the chain law was pulled before I got to it. I had HazMat too so I was supposed to go over Loveland but it was closed so the tunnel it was for me. Since AF/FXF is the only place I've driven I'll probably not make it out there again due to the linehaul structure, and yes I am a Dock to Driver graduate (who's never chained). I did have them on the Fat Tire Volvo, but only a yearly check was the only time I pulled them off.
Nothing but mad respect for those that do this day in/day out, definitely lots of skill and toughness to do it. I'm on a turn that meets Fargo in N. Sioux City, SD right now. I bring the 3rd box up for each of the 2 Fargo drivers to build their triples from their official meet drivers. I would not do so well with mountains, it's been bad enough with the icy flat roads here!
roog