Many with Left side tighter than right?

The ARPwave system is a whole system,just like CFTS is,not a device or a machine. You do not train like what you just described in the ARPwave System,nor do therapy that way,if we accept to differentiate.
And it is nowhere near a TENS,or any EMS device,nor to remove tension as you say.
In the end: a matter of contents,NOT just semantics.

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Performance and newly patterned movement. Hands on therapy is only good as far it is the best option available. Trying to superimpose peripherally induced modifications over centrally induced ones may not be productive at all,as the brain will receive both signals,and eventually read them as “confusion”. Luckily it is more complex than that anyway.

1.Address the origin of the problem
2.Exceed neurological input which created the
issue in the firts place
3.Install correct movement patterns
4.Strength train (teach the system to better distribute and absorb more and more force)

Takes roughly three days ,and 10 less than 15 minutes long sessions.

Yes I do,as I know the possible outcomes,as I see them used quite a bit as rehab and prevention tools in Teams I work with. The focus is not tension,nor removing it.
It is addressing the real cause of that tension.
Which is simply nowhere a foam roller can get to.
To me budget is always an external factor,at least upon discussing principles.

I personally like both acupuncture and cupping,when done correctly.Also we have had a very interesting experience recently in using both to support recovery and complete structural healing after ARP treatments on acute muscle injuries during South Africa 2010 Soccer FIFA World Cup,with very promising results.