After hitting warp theres a few things you can do to make life easier

- find the first beat in the waveform and double click, it will create a warp marker

- scan through the track and find the first beat in bar 33, double click and drag this to the 33 bar mark

- scan towards the end of the track and plant another marker and again place it on its respective bar marker (you can find these labeled above the waveform)

-Check through the track using the metronome and your ears


- Sounding good? - Hit save on the clip launch window, this will create an analysis file so you don't have to go through this process overtime you want to use the track, just drag the clip into and audio track in either session or arrangement view and it will be good to go time and time again

Think of each warp marker as a post stuck in mud, you then you wrap a giant elastic band around the post and over the next post, the elastic band pulls the posts tighter together thus locking in beats and keeping everything nice and tight