I am about to start my pool install and was concerned using pavers underneath the posts. I will be using 11 x 11 pavers (smallest and cheapest I could find) and will put down a sand base and the sand will be level with the pavers, my concern is the roughness of the pavers and possible edge of the pavers tearing the liner. Should I put the post in the center of the paver or more toward the front edge of the pavers. Thanks for the help.