Accordingly to what I understood the feature weight is present in your second collection. You should express the feature weight in the model resource ( not even in the original collection) Is actually necessary for the feature weight to be in a separate Solr collection ?
----- --------------- Alessandro Benedetti Search Consultant, R&D Software Engineer, Director Sease Ltd. - www.sease.io -- Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html