Except for the "proving flotilla", most of what K-61 discussed is actually not exclusively from LSH15. The game-play improvements are mostly from h.sie's hard-code fixes and were made to be "easily" applied to stock SH3, or any/some/most of the earlier "Super-Mods", including GWX (provided the user Reads The Freaking Manual, of course).
But, why not use multi-SH3 and use both GWX and LSH15 "super-Mods"? You could decide which you prefer or you might like them both equally and play a career in each one separately. Besides that, using multi-SH3 permits you to maintain a clean and unmodified/unused copy of the stock game installed on the machine for back-up purposes...which comes in very handy at the least expected times.
