You are insane to think a 5 oz weight advantage = a 100% success rate.
Do you have the same running score every time?
How about the same weight lift results? Every time?
How about when you play a game? Same score every time?
You have different capabilities
each day, hell each hour, and so would your mirror opposite.
To think that the adding of a mere 5 oz would slide the scale to from 50-50 to a 100% success rate is daft, at best, if not insane.
A 5 oz advantage
A 15 lb advantage is significant ... a 48x
more significant advantage than a 5 oz advantage ... but even this is not a 100% guarantee of success.
Ever heard of David and Goliath?
It's all about ODDS ... a 5 oz advantage is negligible ... a 15 lb advantage would dramatically change the odds, but yet still not guarantee success.
Jack