I'm a change-fuel-filters-with-every-service kinda guy. But that's just me.
Price of injectors vs. price of fuel filters IMO.
Do I care? Nope.
I drain H20 every 1k-2.5k miles. Can't be too careful these days.
-2003 F-350 Lariat CCLB SRW 4x4 7.3L Power Stroke- 199,000 mi, Donaldson AIS, HPX, FRx, Int'l T444E Water Pump, Chevron Delo ELC, Melling M208 LPOP, Fluidampr, DP Tuner F6 & Infinity DX, AIH Delete
Autometer Factory Match Gauges (EGT, Boost, Trans Temp), MBRP 4" w/ Straight Pipe, BFG All-Terrain T/A KO 285/75R16