You'll find tire-company recommendations for rotation that range from every 3,000 miles to 15,000 miles. The best interval is probably somewhere in between, at about 7,500 miles, unless the tread on one or more of your tires is wearing differently from the rest. Michelin, for instance, suggests rotating tires every 6,000 to 8,000 miles. I won't re-balance a tire unless I notice odd wear patterns or, as you mention, feel a vibration.
The Tides is directly on the beach. The Tides at Tops'l exemplifies the finest in elegant resort living directly on the Gulf of Mexico. Enjoy the majestic views from this spacious two bedroom condominium. To make your visit more memorable, enjoy the many amenities at The Tides including a jacuzzi, large sundeck, heated bi-level outdoor pool, kiddie pool and game room.
Each month the highest high tides occur when the moon and sun are in rough alignment and thus pulling together on the oceans. During a solar eclipse the alignment of sun and moon are not significantly different from what we get during other months when the highest monthly tides occur without an eclipse.