I'm in the SE situation, Im 6' 34" inseam ad just bought my first drop bar road bike. I have been riding a flat bar road bike. My New Synapse Carbon is 58 and I have been trying to get it dialed in with stem ride and length. Right now I'm using a 7° up 100mm stem.
I tried the 7° down but keeped getting sore/tight muscles between my shoulder blades. Might be just getting used to the drop bar or too long of reach.. Which it feels like to me....To stretched out. Time will tell.