Taylor:
We have a very complex mix of products for people buying new large assets and aftermarket support for people who have already purchased. For us, we did choose to build two RCMs based on, for us, new capital asset acquisitions and one for the aftermarket. Each RCM does have separate scoring models for capital assets and aftermarket to help with the proper scoring for each customer group.
In our analysis we chose to build the system as much as possible a model that aligns with how our customers buy from us. I think everyone's business models will be a bit different and require customization that fits you individually. I wouldn'r recommend scoring by individual product as it is not scalable as your business grows. Hope this helps and if you'd like to discuss offline, I'll try to help wherever I can.