Those are more difficult (I've had a couple of those removed too, I'm of scot heritage and I giess we have a talent to grow skin complaints against the sun lol). They have to go a bit deeper into the skin to remove these and it usually involve stitches. Again, its the after-care that makes all the difference in how much of a scar it leaves. But with the flat moles, the skill of the surgeon is key too since they have to go deeper and have to stitch. Sunscreen (max SPF) and keeping it covered till its near invisible is what you need to do. There will likely be a small white-ish patch where the mole was, a bit smaller than the mole but really not noticeable without very close scrutiny.
...and ps, its a good idea to have the flat ones removed anyway. THose are the ones that can tend to grow into the aggressive form of melanoma thats tough to cure. Not that it will happen, esp if you keep an eye on the shape and color of the moles but why keep it yeah? Have it removed and no more worries.
that's what worries me... they seem to be multiplying and it could just be me being overdramatic but I swear one or two of them are bigger now than they were about a year ago (from looking at pics)... mind you they're still no bigger than about 3/4mm so I'm not too concerned