This is the first time I've heard cardboard scraped over a grill pan for a bass, it worked great. You're one of the few people that can get close if not replicate the commercial DnB sound of artists like Noisia, Spor and SubFocus. Great punchy drumming, can't tell if the whole thing is the Amen Break though, I assume it is. A nice heavy tune to top it off and this is what you got. Nice work dude!