Based on all info given and finding a local retailer to test ride the 58cm, I decided to go with the 58cm.

Besides feeling more nimble, my weight felt more balanced and I didn't feel over stretched.
Also, both bikes being setup the same another indicator that the 58cm was better is the fact that when I looked down I had the front wheel hub mostly blocked from my view. On the 60cm I had the hub in view about 2-3 inches under the handle bars. Something I never thought of but a LBS explained to me

So I'm thankful for the support & advice.

Now to find a source for a beginner techniques!