Not a problem about the first name/last name. ;)
Regarding flattening stones: As you sharpen on your wet stones, the middle of the stone will begin to “dish” — in other words, you'll be wearing a concave surface on the stone. This is because the centre of the stone abrades faster and more prominently as it contacts the steel more frequently (as compared to the edges of the stone, which hopefully are barely contacting the blade's edge, if at all). If the surface becomes too worn, you will no longer achieve a proper (flat) sharpening surface, and only the edges of the stone will be making contact with the blade (no good). To remedy this, you need to re-flatten the stone — wear away the higher edges to achieve an even, level surface again.
You can do this on the cheap by laying a piece of coarse sand paper on a flat surface and working your stone against that until a flat surface is created. I did this a few times before purchasing the DMT plate. The advantage of the DMT DiaSharp plates (or similar products) is that, because they are made of metal (seriously heavy-duty, at that), they resist warping to high degree (especially if they're only being used on whetstones). Thus, they are pretty much always flat, and will in turn give a great, level surface to whatever stone you're using it on.
The 220x plate that I have works nice and fast on my King combi-stone, and I've made a habit of giving each side a quick flattening with the DiaSharp before sharpening, just to make sure I'm always working with a flat surface on the stone. (It's also a lot easier than having to fix a seriously dished stone… which is a real PITA and not something I'd prefer to do again!).
Here's a video that will give you a good idea of how the flattening process works: