Thanks for the welcome replies.
As far as Worlds go: someday, when I feel that I will not be last place, I will do it. I shoot mostly the 20 ft-lbs class, but I do have a couple of sub-12s rifles: MPR FT and TX200. I started with the MPR and realized how much I need to learn about wind, so I switched to the 20 ft-lbs guns for my first year(a lot easier). Once I get more comfortable with the FT shooting positions and wind management I will switch to the sub-12 ft-lbs class.