After looking at the spreadsheet, and assuming that every individual who contributed did a perfect (and not careless) job in measuring, the GIOS looks like the geometry that I am looking for. It looks like a bike that I would buy, definitely! Thank you so much for that! (OK, I admit I knew of the existence of this, and already had the spreadsheet on my PC, but it took your post to get me to actually take a more detailed look, look find the GIOS and discover what a nice geometry it has).

It has a very short wheelbase, shorter top tube relative to frame (seat tube) size, which is good for me because I have long legs relative to my total height and bikes are always too long for me in my frame size (with the exception of the Cambio Rino I had, which was very compact).

One last thing though... and I'm just putting this out there for discussion sake, is regarding the trail.
You can read in books like "Bicycle Science" that a bike's handling, "sluggish" steering, is much affected by human interpretation and misconceptions caused by erroneous theories.

My personal theory is that trail may actually help in handling, here's why: as you turn, the contact point with the ground is moved outward of where you are steering towards, thus helping the bike lean into the curve. But the fact that this is interpreted as "sluggigh", less neutrally responsive and requiring more effort to bring back into a straight line (and keep it there?), sort of casts some doubt on my theory. Maybe it is a bit a combination of the two, that you have to find the sweet spot.