On the idea of "distance claims" can we come up with a question that will give a more reasonable picture of distance. Let's try the following:

Which club would you use if you had 170yds to the pin?

Just because I know there will be questions:
- no elevation change between you and the pin
- pin is in the middle of the green
- no big risks around the pin (ie no bunkers, no water, no jars of peanut butter)
- green will give you your normal amount of spin (ie not too soft and not too hard)
- no wind
- at Ottawa's elevation
- 20°C and sunny - (or if you prefer not too hot and not too cold)
- no rain, no hail, no sleet, no snow, no dragons attacking from the sky
- no golf cart girl around to impress
- no dew on the green
- having a good round and playing to your handicap

If I missed any specific condition just add it in your own mind and choose the most neutral condition.

EDIT: Please read the discussion, IMO it really takes off in page 3.