If you like the Mammoth just give the Vapor Zone a try with a "rolly" drill or a Total Interno to give a bit more length and snap, both GREAT balls to expand an arsenal with.
Good job on the 200 I'm sure there are many more to come, the first is always hardest to get. Just for a bit of encouragement, it took me a long time to reach my first 600, but once I did ( happend to be the second week of a season) I ended up AVERAGING 214 on the year which ended up being good enough for 8th in the house for the year. That was a tough shot and I was there quite litterally 6 days a week but that shows you what practice and patients can do. GO GET EM!
O and PS, do yourself a favor and don't be affraid to knock some polish off of that radical if it doesn't seem to work well when you start off with it.