Yup, I'm beginning to really wonder about my direction on these things, and here's why. I phoned a local gold shop and spoke with a very experienced (elderly) player, and his thoughts were to some extent the exact opposite of where I've been heading on this. In fact, he basically said to "stop researching and worrying about things like length and lie and shaft stiffness,etc., and stop trying to solve it all based on a 'static' (desktop) assessment - just come down to the shop and get fitted properly".
Obviously, he and the others here who have suggested this very same thing are right - this is the ideal approach, and that's exactly what I'll do this coming weekend. However, he had some additional comments or suggestions that also made perfect sense:
1) He tells me that even if the static assessment of my optimal "3+ upright" lie is accurate, none of the mainstream manufacturers offer custom clubs with a lie that high. He says that even when custom ordered, the maximum lie adjustment typically offered is 2+.
2) He indicated that even if a static assessment of my optimal lie shows "3+ upright", its essentially meaningless for a beginner, because the average beginner's swing is typically so inconsistent (heel to toe) that the initial lie adjustment is pointless. In fact, he argued that the typical, everyday player (most of whom don't have the time or commitment necessary to optimize their swings), will simply buy "standard" lie irons and adjust their swing to the lie, rather than the other way around.
3) He had similar thoughts on shaft length and stiffness, saying that regardless of my height, weight or power, I should probably opt for "standard" or "regular" length and "standard" or "regular" stiffness, rather than "stiff". And then, if need be, after playing with the clubs for a few months (or years?), look further into adjusting the shaft length, stiffness and lie, to further optimize my swing later-on.
Any thoughts on his assessment?