I screw up on the delay settings, so pretty much everything is manually done by me - I don't have those presets like the Edge has.
For a movie, you have to make sure the lyrics are consistent with the rhythm that is given to you. But, at times, during the song's recording, you find out that your words are not appropriate for the track, and so you have to change them.
Obviously, if you are playing against a guy who is known for an up-tempo offense, you'll probably tailor your practice a little bit to say, 'Hey, let's get a couple of fast-paced plays back to back to back to try to simulate that.'
If the music in a groove fits with what you're playing, then play it; if not, then you can play it backwards. If that doesn't work, you try it at a different speed. If it really doesn't work you just break it. The whole ritual to put a record on a turntable just to listen to it, I don't do that too often.
Sometimes I will slow down the beat for one bar on purpose, just to see if the rapper can adapt his flow and stay on beat.
I go to clubs and if I notice the DJs are playing the records faster, then I'll push the beats a little on the next record I make. A lot of people don't know how to watch out for things like that.
If the beat feels like it don't make you move right, I scrap that and go to another track. Sometimes it takes 10 minutes, sometimes it takes an hour to get one done.
I know where I'm going musically. I can see my pattern and I'm going much slower than I thought I'd be going.