There wasn't really a thrust, as such, Charley - I didn't word my last post too well, did I? It was more intended to be a question, and thanks for the info you've provided. Like I said SPA are not on my personal map; I'm familiar with Sec 5/Pt 2 but rarely ponder Table 14 as we only operate jets.
All of which is of course completely moot as the original poster makes no mention of wanting to do anything either PT or CAT, or of any particular type, interesting though the direction the discussion has taken might be!