You're doing great. Another 15,000-20,000 shots and you'll be busting nocks every shot

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I may catch some flack for this but if you're goal is perfection the WB may not be the best rest to achieve those goals. Don't get me wrong, the WB has it's place and is a good hunting rest but I can almost guarentee you won't see anyone at a competition shooting a wb. ( I say almost because there is always an exception) If you like the WB and plan to hunt with it then stay with it and keep practicing. If your goal is to be a 3-d competition contended you way want to look for another rest.
The WB definately has it's place but, pin point accuracy is not where it's at.