hi dafrizz
i don’t know where your problem with the minimum size partition comes from (normally you get this behaviour for partitions with data on it. am I right that your partition was empty?)
we have to wait for some patches for parted and gparted, so the default behavior is fine for the new drives.
go ahead with parted and you should be fine. i didn’t checked your calculations but what you plan to do looks fine too me. you should get a properly performing drive by that.
