I think it would help tremendously in game creation if you got a serious mathematician to help resolve the chances for a requirement being filled - for instance the chance of two specific letters actually being in the WP is as bad as a lottery ticket - probably worse when the cache concentration of an area is factored in. For a beta test randomly select a cacher who has found 300 caches and see whether you can achieve the requirement in a 50 mile radius by public transport
The profile for terminator sam for instance has obviously been much too narrowly written. After all the work that has gone into the excellent presentation and puzzles it would be a shame for the game to become so rulebound it is unplayable in the spirit of fun in which it was created.

