Hi Gene Kula,
whenever you do the reverse engineering step (manually from VS), there is a dialog asking you which class files (partial) should be generated. Only those files will be generated (again, only the XXX.Telerik.OpenAccess.cs partial class files, not your XXX.cs file) when selected.
We think of the 'automated generation' not as a cyclic step (although we support that), but as a one time 'get-me-a-matching-model-for-the-db-i-have' step. When you need to alter the database afterwards, it is very likely you need to regenerate only one partial class file.