Reply To: Find your biggest negative core beliefs – A DIY guide to change limiting beliefsForums › Questions on PSTEC Packages › Belief Blasters › Find your biggest negative core beliefs – A DIY guide to change limiting beliefs › Reply To: Find your biggest negative core beliefs – A DIY guide to change limiting beliefsOctober 27, 2017 at 2:48 pm#25439Brian TuckerPSTEC UserTim says it's not really necessary. Jeff suggests to do it.I would say it only can make it x times more powerful.I would suggest PSTEC Extra Positive.