+1 to what Nev posted.

It would be easier to have "loopable" sections of content and trigger them at the appropriate time in the audio track. This way if it is a bit faster or a bit slower you are at least always in the proper "section".

If you need more "precise" sync I would recommend having Protools output MTC (MIDI Time Code) to your Catalyst, and use the Sync to MTC Playback mode in your cue on the Hog.

Hope this helps.