As I am sure the stats-king PMJ will verify, if you have 2 objects the chance of failure doubles.
Thus by running with one eye shut Bus & I have half the chance of getting a fly in the eye cf you binocular runners.
Not sure that holds. As an engineer, I see the need for 2 eyes. If you need 2 eyes, then it is sensible to have 3, so one can acciedentally fail and you still have 2. You then need to add one, so you can take an eye out of operation for preventative maintenance and still have 3 working eyes, so 4 eyes are clearly needed.
We used slide rules in uni. I think it was a history lesson or something.
I used slide rules in earnest. One of the places I worked out had a seriously massive slide rule (about 5 meres long mounted on a wall) accurate to 3 decimal places. You had to queue in line in order to use it.
MsE, one thing you need to thing about when you peak for a race is how you measure your performance. A quick peak at the website for the Coastal Dorset HM shows the fastest female time is 1:59:16. You are a comfortable sub 90 runner so if you ran 1:55 and broke the record but are maybe 20 minutes down on your PB, how does that square up?
Personally, I chose to peak for races that reward with a fair time for a fair effort. I may target other races where times do not reflect true ability but these have other reasons, such as cross country where I measure myself against familiar faces an previous results etc. Gosport is fair and fast, I would target that and enjoy the coastal as an experience.