Looking for new knee pads to replace my 661 knee/shin set. My pads are ripping at the top of the knee cup on the mesh and aside from the plastic shell they don't offer as much protection as I'd like. I like the padding of things like the TLD T-bones, Rockgardn Neo and the Nukeproof Critical armor knee. I tried on the TLD ones at Snowshoe and the S/M fit well enough but felt very likely to irritate the back of my knee and the next size up I was able to slide with the straps tightened down. I can't try on the Rockgardn or the Nukeproof ones but it is looking like the NP have the edge since there is a cutout behind the knee. Anyone have any experience with the Rockgardn or NP pads that can help this decision along?