Visual Studio Solution Template: Exception Handling best practice?

I'm developing plugins for CRM 2011 using the Visual Studio Solution template provided by the SDK, but I'm not entirely sure how to properly handle the exceptions using it. The base plugin class in the template, which my plugins need to derive from, does this:

            catch (FaultException<OrganizationServiceFault> e)
            {
                localcontext.Trace(string.Format(CultureInfo.InvariantCulture, "Exception: {0}", e.ToString()));

                // Handle the exception.
                throw;
            }

Should I alter this code? Given the documentation available for CRM, I'd expect the plugin to throw an InvalidPluginExecutionException like this:

            catch (FaultException<OrganizationServiceFault> e)
            {
                localcontext.Trace(string.Format(CultureInfo.InvariantCulture, "Exception: {0}", e.ToString()));
                throw new InvalidPluginExecutionException("An error occurred in the plug-in.", e);
            }

Also, I'm somewhat unsure if I need further exception handling in the methods that are invoked by the base plugin. For reference, here's what the base plugin does in its Execute method:

try
            {
                // Iterate over all of the expected registered events to ensure that the plugin
                // has been invoked by an expected event
                // For any given plug-in event at an instance in time, we would expect at most 1 result to match.
                Action<LocalPluginContext> entityAction =
                    (from a in this.RegisteredEvents
                     where (
                     a.Item1 == localcontext.PluginExecutionContext.Stage &&
                     a.Item2 == localcontext.PluginExecutionContext.MessageName &&
                     (string.IsNullOrWhiteSpace(a.Item3) ? true : a.Item3 == localcontext.PluginExecutionContext.PrimaryEntityName)
                     )
                     select a.Item4).FirstOrDefault();

                if (entityAction != null)
                {
                    localcontext.Trace(string.Format(
                        CultureInfo.InvariantCulture,
                        "{0} is firing for Entity: {1}, Message: {2}",
                        this.ChildClassName,
                        localcontext.PluginExecutionContext.PrimaryEntityName,
                        localcontext.PluginExecutionContext.MessageName));

                    entityAction.Invoke(localcontext);

                    // now exit - if the derived plug-in has incorrectly registered overlapping event registrations,
                    // guard against multiple executions.
                    return;
                }
            }
            catch (FaultException<OrganizationServiceFault> e)
            {
                localcontext.Trace(string.Format(CultureInfo.InvariantCulture, "Exception: {0}", e.ToString()));
                // Handle the exception.
                throw;
            }
            finally
            {
                localcontext.Trace(string.Format(CultureInfo.InvariantCulture, "Exiting {0}.Execute()", this.ChildClassName));
            }