JOEL - 123 = First Hydro CC.
I'm not so sure IH really "Fell Behind" the other brands in the market place. Cost was ALWAYS a concern, and adding P/S, 2-3 sets of hyd remotes, steering brakes, either sleeve hitch or Cat O 3-pt, rear live PTO, etc all added cost. The vast majority of CC's were used to mow grass with rather light 38", 42, 44, 48, or 50 inche decks that could easily be raised by hand with manual lifts. A few were used to move snow, rototill, etc. where a hyd lift was a nice option. And IH made those options available.
JIM D. - Kohler Magnums had ductile crankshafts, same material as all those high revving Cleveland Ford's.