User blog comment:Apepa/More powerful Frag Grenades for the Stimulus Package!/@comment-1758131-20100319122439

Well, I use frags because one of my friends uses it for a class and I'm working on it for him. I think they're fine the way they are. There are a lot of advantages from frags to Semtex.
 * They're lighter, so they can travel further.
 * The blast is controlled, useful for hardcore.
 * You can cook it (which requires mastering. Hint: it detonates a little later than you think)
 * You can bounce them off walls.
 * You can roll them along the ground (by bouncing them on the ground).

I'm not sure if I missed any attributes a regular frag has, but you just need to place them more carefully.