Welcome to our forum.
Steve, My perception was similar to yours indicating somewhat of an untrusting relationship, and the statement of protecting his own interest. :-/ I seem to have stepped on a land mine here, as it appears my interpretation offended drober.
The boys at Lifestyle are good people and regardless of who you are dealing with 80% of us go an extra 2 miles for our customers regardless of situations because they support our businesses. The other 20%, well I understand the situation and the need for concern. How is the preparation coming and when is the spa being delivered. We need to schedule Lori for the water blessing.
cure time depends on weather, I'd say 7 days but the one to ask is the cement guy. Call your dealer and based on the dimension of the spa have them tell you where it would be best to have the electric come in from the bottom, or better yet, stop in and have them take the side panels off to reveal the best place, measure it, apply it to the foot print of the spa and the square dimension of the cement pad and pour that sucker today. If the contractor is ready, go with the flow, the hard part is over. Your gonna wish you did this a long time ago.