Given the design of the EquaGel Straight Comfort Gel Cushion grid pattern there is not an optimal weight. There is only a point at which the grid patter is rendered ineffective. Up to the maximum, each grid supports a certain amount of weight before weight begins being absorbed by the next grid. The weight is absorbed at a uniform rate, so long as it is on a flat surface, until the weight is dispersed across the surface. Whether the user is 100 or 300 pounds, the 'cushion' is relational to the user. So, there is not an 'optimal' weight per se given the nature of the design.