Originally Posted by
RightSeatDude
but admit to being slightly disappointed that S5 didn't have any 175s.
170 vs 175
They are the same plane!
Identical cockpit, Identical systems, Identical Engines, et cetera. The 175 is merely a 170 with a 6 foot plug in the fuselage. Besides as an FO (or even captain on the S5 side), you will not see a penny of extra pay between airframes.