Well, I actually just talked to my friend, I guess you don't HAVE to bleed the brakes, but if you take off the caliper you do. I guess when my dad ****ed with my brakes, he took off my caliper. I had a hard time trying to push my caliper back, plus it was 8 years of crap built up on there. But like you said, if you remove the caliper from the brake line, you definitely gotta bleed them. I dunno, I would take it somewhere but thats just my opinion.