Kelly,
I don't have a good answer other than something might be wrong. The linkage ratio has obvoulsy changed with the BBR componets, this requires a heavier spring, that should mean the stock shock valving is now soft as the shock moves much slower. This is not what is hapening acording to your info, and your sag info would tend to varify your this logic. So something must be wrong. As for what I don't know. Is the shock complly untouched? You could put the valving on a CR80 shock upside down fairly easily, and that would make it way harder..
Jer