I do not find the subliminals in the Holosync tracks or anywhere else for that matter to be truly effective. When they are effective, the effect is temporary and mild.
Since you're actually interested in behavior modification, use techniques that you can hear. Even the LSC paraliminal tapes or HypnoPeripheral Processing (HPP) tapes of Dr. Glauberman are better than subliminals.
For more effective change, look into the visualization techniques of NLP (neuro linguistic programming) or Silva Mind Control.
There's one company that packs thousands of sublminals per minute in its tracks but I did not find it to be any more effective than others. Hypnosis might be useful if you find a really good hypnotist.
You're probably better off repeating the affirmations over and over in your mind every day for a month or two. Supplement the verbal self-affirmations with writing them down many times each day. There are a number of software programs that display subliminal messages on a computer screen, but visualization or involving as many sense perceptions as possible are better ways to access the subconscious mind.
