The best advice anyone ever told me and it worked on the strip and worked on the road race track, it was good for many many hole shots, this also eliminated my first through third power wheelies.
1. hold the front brake
2. release the clutch ever so slightly just enough to where you start to load the front down slightly (compress the front forks)
*the reason for this is so you don't violently shock your clutch basket, chain and suspension and either flip the bike or pull a wheelie from hell
3. Practice slow and low rpm launches until you feel comfortable with that "grey" area between clutch engaged and clutch disengaged
4. The clutch and throttle are released and opened simultaneously but the clutch is released slower, the object is to not NOT wheelie,