I agree about using the ABS a few times. I never thought about exercising the pump, more about getting use to it. My 2014 N1k was the first bike I rode with ABS. In springtime on sanded roads going in a straight line grab the brakes. It was very hard for me to force myself to do that. Amazingly, the bike stayed straight and even more amazingly was how quickly it stopped. It does feel funny, however, and I'd hate to be riding near the limits of traction and have the ABS kick in without ever having experienced it before.
2018 Ninja w/bags, Motowerks lowered pegs, Sargent Seat, Puig/Vstream screen, Givi XS307 tank bag, WOLO BadBoy horn, Aerostitch Roadcrafter