I had the same dilemna when my buying my pool as my little boy was five then, and couldn't near touch the bottom on a 52'' pool. For adults, and preteen daughter, we wanted as deep as we could go. We ended letting my little boy use a lifejacket last year, that would allow him to float around, jump, whatever, and this year, he can touch bottom with no problem and get around just fine. They do grow up fast ! I think I would just go with the regular install, and not worry about it.