Going back to your fuel dilution issue. Please don't take offense if I ask about how the samples were taken. Was the car fresh off a good run? Or just warmed up a few minutes, then sampled? The reason I ask is that, in every other respect, you have some pretty good results there. Not knowing anything else, that kinda red-flags the sampling process to me.
I have a 2000 Accord that's had only two repairs in it's life, an EGR under warranty and a rear wheel bearing. Super car! I won't count one battery. At 70K, it's still running the original brakes (50%+ yet)and tires (thin at about 5/32, we're shopping!).
My UOAs have never shown a trace of fuel and I don't remember hearing that Hondas were prone to fuel dilution issues. Is it just the later engines or all?
FZ1: I feel your pain. Spent 20 years working on hi-end cars before changing careers, so I dread having anyone else touch it. So, I intend doing the belt myself. Have reviewed the manuals and it doesn't look any harder than some of the Porsches and Audis I used to work on. Ditto for the valve adjustment(which looks easy technically, just a lot of junk to remove first). I'm a little rusty but I'm far more motivated to take my time and do a good job. In fact it will be fun to do a technical job like that but not be "on the clock" and pressured by management to do it quick.