Love the advice. seriously.

When I read all these threads on bike selection I have come to what can only be the wrong conclusion in that for each person there is only one reach and stack. Clearly there must be many. I came to this conclusion because in fitting a bike, there appeared to me to be a finite range the spine should be at, a defined reach a person has and since one's legs are not plastic, a fixed seat height and stack related. Clearly I am incorrect in this thinking. It also seemed to me that some just do not fit certain types of frames no matter the amount of gymnastics attempted.

So if I wanted another endurance geometry, I could use the determined reach and stack for a bike that fit but clearly, it will do no good if I wanted a racier geometry. Over the last year and a half, I have been becoming more flexible and might like to try something racier since I wasn't when I purchased my current bike.

Am I relegated to trial and error or can anything be salvaged from the current numbers to get a direction to a suitable less endurance minded frame?