What-Ho Paw!
>I always sit on a pillow, usually on a mattress. But I get no result from a tennis ball or a rolled sock, so the cradle is my next purchase.<
I used to use the equivalent of a rolled sock but I now find that the Cradle is a far superior object, most probably due to it's firmness and shaped contour which puts pressure on two specific points, the forward part of the perineum and also the k-spot just behind the anus, while avoiding excessive pressure on the prostate area. As a sensation booster I find it just as effective as any of the Aneros versions. It is one of my best buys.
I don't have any problem with the firmness of the device because I do my sessions mainly flat on my back and can set the pressure just as I like it.
if you are already multi-orgasmic I think you will find the Cradle very worth having in you toolbox.
BTW,welcome to the KSMO community!
Mog