-If you're still meant to move slowly with disks, make this problem sticks. Right now it stinks people can just charge you, whip out a disk, and chuck it.
-Either make the disks move slowly, or make them have a longer charge time. Occasionally, even though I KNOW a disk is coming a second or two in advance, I can't dodge it due to lag (I have a 56k modem). Or just make them not insta-kills, so it's not so harsh.
-I believe the disks insta-killing can be made balancing, as they work best alone: I can wear someone down with Ki Blasts and finish them with a Kamehameha, but all other attacks do nothing to aid my disking.