Thanks Gel... I wear that density on my topper presently and it`s about the max. I could get away with at my age, I`ll take the plunge later in the year as I have a new topper ordered.Many thanks for your input..Paul.
P.S. Henry.... I`m keeping my fingers crossed that I don`t have itchy sensations.. I don`t have it with my topper, so hoping it won`t become an issue when wearing the larger system. Cheers.