I like your idea of trying it in a couple different attys. Also, don't forget to play with power/temp, as well as airflow (if adjustable). I find different flavors/concentrates/profiles, can taste significantly different, in various environments.
Regarding the LA CCI; that can be a 'long steeper." I have read reviews/notes saying a month, or even more. I would consider giving it at least 6 weeks, before making adjustments. Just something to think about...
What percentage did you end up using it at? I have used it mostly at 1.5-2.0%, and I find I need at least 3 weeks, before it starts to show its face.