I posted in your other topic about the "dual whip" you probably wil want to look there for info..
As for strong hits SSV is the best it seems. You can get some nice hits with a lot of vapor. As you were asking about the extreme, like I posted in the other topic I've filled the elbow up with some kief and got monster hits, kief is the pollen that you get when you grind the bud and it goes into the catcher, if you have a 4 pt grinder.
It's really what you want. I don't know how durable the SSV is, but if you really are going to have sex while doing this, I would try to be careful, there is glass. I know if you knocked over either one it wouldn't be good, bud all over the place, etc.
I honestly think bags would be a good thing to use, if you're fucking, so you wont accidentally break or knock anything over. As for bags, I haven't tested the Extreme enough to say I can get super bags, but I know if I can kief pack the elbow, I would get huge bags. I got over 20, before I had to stir, when I packed hte elbow half full. The elbow is where the big hits are, but the hit size is w/e really, you still get vapor and all the goodies no matter what

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