My Matrix 18x33 oval came in today and I really want to make one end 6 feet deep (except for 2 feet around the perimeter for support). Has anyone done this or heard of it being done successfully or unsuccessfully? I was considering having a company install but they were noncommittal to doing the deep end until seeing the property(understandably) and they also said they would not recommend it unless the pool was a Doughboy. I don't want to make a dumb mistake ... but as I said first I'd really like to have the deeper end if the risk is not too high of the pool caving in.