Real sorry to hear of your "perfect" 110 letting you down. Every time I see someone check their crank runout, andsay .003, yeah, I'm good, I cringe!!
Back in 01, when I bought my 88" Dyna, the manual called for .000 to .0025!!! They said the crank needed attention if it ran .003!!!!!! IMO, the HD spec of .012 is ludicrous, Briggs & Stratton does far better!! Harley needs a major a... kicking for this junk.
My 01 had a forged steel crank, Iran a supercharger at 12lbs boost for 3 years. I did not baby it, shifting constantly at 6500 rpm with a 95" kit in it.
Never had the slightest issue, crank measured .001 (was checked during the supercharger install).
I don't see the hydraulic tensioners and cheaper chains as being a solution at all, the original hyvo chain was much stronger. I poilished the outside of the chain, and it never showed any wear on the tensioner blocks.
You are seeing the results of massive cutbacks in quality IMO, while improving the profit margin for the shareholders.
I still have the 01, now with and S&S motor (sold the supercharged assly complete). I will never buy another Harley, I like the one I have. JM2C FWIW Buffalo