I've been experimenting recently with wheelies too.
The easiest way i can do it is, trundle along at just a bit slower than walking pace.
Pull in the clutch, build the revs up a bit and drop the clutch. I also sit right at the back of the seat and give the handlebars a bit of a pull and it flys up with ease.
To stop me going over the back i just pull the clutch in when i feel like i'm going to far. I can't use the foot brake, just doesn't feel right.