Got a Dif e Yo Sportster-F via eBay today, and the pad response has completely gone - almost like no pads at all.
I’ve sanded them a bit, and they are better, but I’m going to need new pads soon.
I’ve done a little internet searching, but I haven’t been able to find - for sure - which pads I need for the Sportster-F, the standard size or the .555 size.
BTW, this model has a groove recessed into each half, so that pads fit flush.
On the dif-e-yo site, the only models that call out the .555 pad are the InTernal Turmoil, JUGGERNAUT, and the Rev-1 OVER HAUL. All the rest take the std. size. Your choice is the thin or thick.