Yeah, suck it up cupcake. lol
It's part technique and part handle style on the kettle ball. I got some the first day. Hurt pretty good. The key for me is my grip. If I'm doing swings with too soft a grip it will spin and smack my arm. To firm a grip and it tries to pull arm and all back over my head. Medium grip lets the bell slow down it's rotation so it does not smack my arm and it does not pull back over my head. I'm running 25 lbs on my swings and overhead presses until my left shoulder catches up. I can do 30, but it hurts my left shoulder pretty bad.
We still do the 3 set routine above. But tonight I added 2 sets of 10 deadlifts with 55 lbs (I lashed 2 bells together and wrapped the strap on my wrists), 3 sets of 5 cleans on each side, and 3 sets of 5 snatches on each side. The cleans and snatches will bang your arm if your grip is too loose.
Between my wife and I we are up to 5 kettle bells; 10, 15, 20, 25, and 30. We both really like these things.