johnhall wrote:This is compounded by the fact that the model year of the RIC instrument makes a difference, as they've only gotten more tolerant in the recent years, but anything we publish has to apply to all instruments.
I can see why this is such a challenge. My 2008 4003FL is a big wimp, as much as I love it. JF344s are pretty much the only thing it can take to get near-zero relief. On the other hand, my late 2015 4003S has a great neck that seems like it might withstand actual bridge cables. Same for my 2008 4004L that I bought from Dan Basica (RIP). And my 4001FL is basically locked at zero relief no matter what I put on it. I am guessing you can at least limit yourself to the last 5 years worth of models...? (The warranty period.)
It seems there was lots of variance before 2012 or 2013, and then I get the impression that necks really became drastically more consistent. Some kind of CNC improvement maybe, combined with the strength 2-piece neck.
If you want to try flats and aren't sure, TI JF344 is the way to go. I can also say that the lightest D'Addario Chromes set is not bad, but seems to have a smidge more tension overall than the factory strings, as it requires a tiny truss rod adjustment after switching.