The one thing that has always bothered me about pre-cooking chicken is the flavour from poaching the chicken is lost. Pre-cooking it in base has the benefit of capturing that. The downside I imagine (although I have yet to try it) is that the chicken won't have the benefit of poaching in a salty, spiced liquid.
Think I'll have to try both at the same time to see if that really matters in the final dish.
Cheers for the idea!