The point of having a control group is so the results can be validated to a point of FDA approval so insurance will cover it and doctors can prescribe it. The approved uses are limited to wound and infections and such. Without a control group, insurance likes to call the new protocols 'experimental.'

I've seen the Summit so Sea system. A chiro clinic about a mile from my house was selling 10 dive packages.

The sellers require a doctor's prescription to sell them for home use. What did your doctor use as the reason for prescribing it? TBI and PCS is not an FDA approved use yet.

How do you control the decompression rate when you surface when you are operating it from the inside? 1.3 is like a 3500 foot altitude change. Or do you just yawn and swallow or such to equalize the ears?

Did you do any mental tasks to stimulate blood flow to the brain during your dives?

I've read Harch's claim about the 15 point IQ increase. That appears to be an outlier claim because from what I've also read, mTBI/PCS rarely causes an IQ decrease beyond 5 to 10 points.

I've followed Harch's work and hope his studies would meet a medically accepted standard. When the VA and other military health and rehab entity says, 'Yes, HBOT works under these parameters.' From what I've read, it appears the shallow dives may help more with neuro than the deeper dives. Confirming a standard would be great.

Justifying spending $7500 to $10,000 is tough without some better information.