I got rid of the excess weight last year fortunately. I had dropped another five and while I felt "fast" uphill, my favorite saddle was no longer comfortable.

The just seen Cannondale Synapse with the split seat tube below the front derailleur mount is interesting. The headtube may be a bit tall though, but not by much, a flipped stem may get the position right.
Maybe it will be out in the Fall.
I think I would ride with my 3V and older Ergo in a fast group first to convince me I really would benefit from it from the latest and greatest. That bike is close enough in shifting and braking that only after I was really fit and felt I really needed more stiffness and less weight would I be willing to spend on a new bike.

Some of the local master class guys though just look abnormal in the body fat, muscle mass department.