I don't know where you get your impression from but if you miss a lot of six foot putts you aren't tour material. You don't average 27 putts per round unless you are hitting from 20 feet or better.
I agree, but you claimed a six footer is a "gimme". Not true.
You don't average 27 putts per round unless you are hitting from 20 feet or better.
That just isn't the case. The way pros average 27 per round is by placing their approach shots close to the pin.