No, not any more than normal. SOmetimes its a PIA and have to play with it to diff lock unlock. I am bad about stopping first to engage. Key off rarely to reset it to work. I have had eps light stuff on old trex and it turned out to be weak battery. Spacers do slow up the EPS but never been a problem in any way running spacers except more mud flying. Being 65 wide helps on sidehills and corners and wheeling rough big stuff.
2018 Teryx 4 Camo. Bandits, 4500 winch, Flipper windshield, Boss stereo rocks, 2" spacers, VForce tuned! Sportsman SP850 Camo for fast times, MAGA!