Since the interpreter slack mode is a tunable now, enable a local hack only when it is set.  Note the default behaviour does not change by this change.
Since the interpreter slack mode is a tunable now, enable a local hack only
when it is set.  Note the default behaviour does not change by this change.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase