oh yeah i forgot to mention, you will get aggrivated when changing pads. as that stupid cut in the lip for you to slide the plastic seal over and twist is terribly annoying. it took me a few tries because it was hard to do when the pads are brand new and not fully broken in yet.
just breath and take it slow, thats how i figured it out. also make sure as your twisting to follow around the edge of the cup to make sure its sitting in the groove.
I personally prefer the A pads over the B pads. but thats just me
heres a video that i used to figure out how to put and take off the pads for mine better. (i dont use tissue at all, just gotta have tiny bit of dexterity.)
its at the 6:20 mark.