In this Solid Edge University session, Craig Ruchti, from field support, leads a hands-on session leading users through using features in mixed Ordered and Synchronous modes. Craig advocates changing over to Ordered before adding "finishing features" such as fillets. This idea meshes with Resilient Modeling which is dicussed in other places on this blog.
Craig helps you through understandin when you can/can't/should use Sync or Ordered. Use your Sync tools while in Ordered mode.