What synths are you using? I use FL 9 as well, and you can produce some amazing stuff if you know what you're doing. I've been doing it for two years now!
Wasp can make some epic filth wubs. Look up SmithCommaJohn for an example.
First Video: A little high pitched, it sounds like it should go on a video game or something like that. Its good, second is better though. 9/10.
Second Video: It was the best! Some badass Dubstep there my friend, although the bass was a little too deep. 9.7/10.