@NSEric My IPL is SCS 01-2011 3.33. Page 9 shows the plate for several models. The next page lists which models get a plate. Models 1 and 2 do not use a plate. Only model #3 for the 271. (1) MS 271, (2) MS 271-Z, (3) MS 271 C-BE.
It does not have one but maybe installing one would help...