I like to end-up at fingertip with fairytale ends. I not sure however at what length I should start letting my hair fairytale?

Right now am aprox. at BSL with layers starting just past shoulderlength and I'm vitually split and damage free. I vowed not to trim my hair until Jan 2010 but I'm still at a loss what to do next. My hair tends to grow in a full hem which I don't like and which is also the reason I want to 'grow' fairytales so that would suggest just to stop trimming right now. But then I am experiencing less growth ever since my last trim in December 2008 .... I can't imagine it is related but it has me worried about just letting things go from here. So....

Should I just refrain from trimming and start fairlytaling from now on?
Or should I first even-up the majority of the layers at BSL or Waist and then stat fairytaling?

How did you do it (or how did it happen if not planned)?

This is my hair end of May 2009: