Just a quick question, there are two types of fabric available, 30 d and 40 d (the dream tex) I know technically the double layer RR is rated to 250 lbs, but.....would it be too much of a leap to maybe say the 40 d is a bit stronger and can handle a little more weight? (I remember reading that the main reason for the weight limit was not so much the fabric but the limitations of the spreader bars--i use heavy duty ones so thats not an issue----plan B would be for me to lose a few pounds, but lets explore all the options first!)