Your post that ended with
Likewise, I had no clue how far I was actually casting until I went to the park with the tape. ......Any honest man will admit to having measured himself!
was a good one.
I never had measured a cast until 3 years or so ago, and it is the only way to really know how you are doing, how a different line is doing on this rod or that rod and so on. I didn't know what I had been missing all these years.
Tape measures are no different from odometers, speedometers, watches or bank statements. Pretty simple really.