Hi Jack:
Recently I was asked about this from the standpoint of “storing” energy in the hara (belly) to improve stability in life. Below is what I wrote back. Hope it is helpful.
Hello:
Yes, in Taoist systems, Hara (or Dan Tien), is about storing energy in the belly and acting from there. This is central in ancient Chinese and Japanese martial arts, which evolved later toward spiritual paths. Yoga began as spiritual in ancient times and continued as spiritual, with more emphasis on cultivating inner silence and radiance outward, divine ecstatic outflow, etc. Under normal circumstances, divine outflow (natural karma yoga) is preferred over storing energy at the naval (marital arts technique). But everyone is different in purification and opening and it is not always going to be a straight line from practices to divine outpouring. So intermediate methods for managing energy are often needed. Self-pacing and grounding are developed for that in AYP. But, as you say, sometimes more is necessary.
An area of development for AYP in the lessons later this year will be more focus on those who are over-sensitive to yoga practices (excess energy flows, imbalances, blockages, etc.), and also on those who are under-sensitive, who seem not to experience much observable effect from yoga practices. So the lessons will be looking at modifications to the baseline AYP system as needed to address these variations in the experience occurring in some practitioners. It has been going on already in the community, with many things being tried by many people (for right reasons or wrong reasons) and it was addressed somewhat officially by me in several posts in this topic: Research on Modifications to AYP Practices - 13. Building a Daily Practice with Self-Pacing - AYP Public Support Forum
In your case, if you are looking for more stability in the Hara way, then consider Taoist methods. The writings of Mantak Chia are very good for this. His work in Taoism has been similar to what AYP has been doing in Yoga – bringing to the public over the years many techniques that were not openly presented before. Also see Jim & K’s writing on his energy issues and how he has been addressing them by integrating Taoist methods with his yoga practices, here: Kundalini Overload: Grounding/Front Channel Block - 14. Kundalini - AYP Practice-Related - AYP Public Support Forum
Of course, if you have local support for applying useful methods (of any kind) that can enhance your experience in daily living, go for it. And yes, please do share your experience with the AYP community, so all can benefit.
For the record, for a period of about 10 years during raging kundalini, I used a daily Tai Chi routine in addition to yoga practices with good effect (covered in Lesson 69 and elsewhere). Tai Chi is a Hara/Dan Tien based practice. Later on (about 10 years ago), nearly all the energy went to outward divine flow (divine outpouring) and the Tai Chi became less essential, though I still do practice it occasionally as needed. If the divine outpouring had not ocurred (hara evolving from storage mode to pass-through radiance mode), there likely would be no AYP, and I would have a well-stored energy belly instead, constantly ready for the fight (metaphorically speaking). 
So that is the trade-off, which characterizes the main difference between Taoist and Yogic methods.
In both systems, the cultivation of abiding inner silence through meditation is essential. This is generally much better recognized in Yoga than in Taoist systems. So I think both systems have something useful to offer each other.
All the best!
The guru is in you.