definately!!! you should... when I installed mine,,, pured some fluid and without putting the cap back on try and squeeze the handle.. you will notice bubbles comming out towards the resevoir.... i mean bunch of em... so probobly I recomend getting those bubbles out of the new hose system by squeezing constantly, then bleed the master cylinder, then bleed the left/right caliper. I did the caliper first then the master cylinder, for some reason I had an itch to scratch and did the calipers once again 3 days later, and found a bit of bubbles still,,, so i recomend doing the master then the caliper in the end. and the stiffness of the handles comparable before I touched the damn thing.