After 4 yrs of living with D, this is going to seem like a dumb question, but I'll ask anyway. (already asked on FB but thought this might be more fruitful) Do you notice a difference in the way BG's behave depending on whether the swimming is in a pool or in the ocean? Tyler drops like a rock in the pool, but lately has steadily climbed when swimming at the beach. Mind you, it is awfully hot at the moment, so I guess that would come into play. Any thoughts would be appreciated!