Hey fellow pilots! Just got an iPad for the sole purpose of a EFB + pilot supporting tool in whatever possible way. Now, I wanna get FAR/AIM in it, but with two specific features: to be able to underline /or tag/ the info - substituting the brick made from paper to be constantly updated - eliminating the need for a new issue of the brick every year. I've heard some things about Sporty's, ASA's, however still not decided which is best, because there are other options. I would appreciate some advise from people who already done that. Thank you!