I have thrown these, and I really like them. I can stick to a line a lot better with these than I can any other. Also, it's probably just me, but I feel that out of my hand these are a bit quicker/easier to snap than the domed ones.
i have a max weight echostar wraith, very flat top, and it flies stable. i tried a lighter weight normal star wraith that was domey and it flew overstable. definitely like my flat top because i can put it on any line and perform pretty much any shot... so much glide. best driver ever made in my opinion.