How do you go about this? I can see four main options: a) switch over during a breakdown; b) slip a dnb record down to 33 during a breakdown (Subterra, Subwave and most stuff on Metalheadz can pass as dubstep if you slow it down) and then mix it in; c) use a dnb record with a dubstep breakdown; d) drop a dubstep remix into the original dnb tune by switching from one deck to the other on the first beat of a phrase. I've never listened closely enough to work out how other DJs do it. Your thoughts? Any audio examples would be extremely useful.