Okay, first of all. . . you actually have more guts than I do. 'Cause I haven't put up anything of me playing.
Secondly, I agree with ALMOST everything BBD told you. Try to focus mainly on practicing your precision. The speed and "licks" will come. Learn things the right way and your body will speed up naturally as you do it more.]
The one thing that I would hesitate about is the R&B and hip hop music. If you're saved, be careful about what you let go into your ears. You can't put kool-aid in a glass and expect to pour out Dr. Pepper. Only what's inside can come out. . .and the only thing you'll have inside you is what you let inside you. I'm not trying to be too deep, but, if you're trying to walk in righteousness it's a complete, whole-life endeavor. (Remember: This is a Gospel website)
The apostle Paul says that if something may cause our brother (or in this case -- sister) to fall, then we shouldn't do it. If you are one of those few people who are not affected by words, then ignore this message. But if you understand the power of persuasion (which is the only REAL power that Satan has in this realm) then take heed to this advice and be careful about the type of lyrics that you allow to enter into your spirit. You'll open doors that will take years to close.
With that said, there are numerous Gospel recordings that would allow you to hear what BBD was trying to get you to learn from the hip hop and R&B MUSIC. I agree with him that those STYLES of music will grant you the exposure that you need to learn what each drum part does. But remember that Gospel is a message, not a style. And since Gospel music is not limited in what musical form it should follow, there are many styles that are used to get the message across, so you don't have to leave Gospel music to find the STYLES that BBD suggested.
This is no indictment or attack on BBD by any means. So nobody try to stir up anything. This is STRICTLY from an I-don't-want-our-sister-to-fall standpoint.
Happy practicing!!!