using lifeflow and holosync at the same time

Probably not if they use sound of any kind. The brain won't process it out very well. But if you are just going for a placebo effect with an incredible success rate of 60% to 80% then even though you're just listening to noise at this point you will believe it is helping you and that is what you will really be listening too all the time you're doing multiple meditation programs.

Now if you are talking about combining the steps of how to meditate from multiple programs then YA! absolutely freakin awesome thing to do. One of the best therapies I've seen come out in a while is Dialectical Behavioral Therapy DBT. It combined working elements of a couple of different therapies and philosophies to produce something much better.

So is the goal visualizing yourself doing success steps or a more traditional "stare at the flame" and empty your mind? What are you trying to accomplish? What are the claims of the programs? What is involved in doing the different meditation programs you mentioned?