Don't think of it as pointing your toes as much as just letting your foot flop. (does that make sense?) When I swam on the team we were always told by our coach (who studied under Doc Councilman) to let the foot find it's own position. instead of making it do something we "think" it should.
Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, champagne in one hand, strawberries in the other, body thoroughly used up, totally worn out and screaming: "Yeah Baby! What a Ride!"