The pH of the saliva is the other part of the fraction, where the urine pH is the first. Like the urine pH, it also is about the speed at which energy can travel. If it is too high the energy cannot travel fast enough. That in its turn tells us that the reactions are not taking place fast enough to allow the minerals to hook up to the body’s frequency. So basically the pH tells if the body is able to pick up the minerals it is presented by the food. While the urine pH tells what has happened the saliva pH tells how strong the digestion juices are and a bit about what is going to happen.
Since the saliva pH tells us a bit about how strong the digestion system is, some people consider it more important than the urine pH. I don’t. The reason for that is the single number only shows a small part of the total equation. The saliva shows what CAN happen, while the urine tells what HAS happened.
Most people including Reams, Vincent and Revici concluded that the ideal pH value was about 6.4. Some say up to a point higher, but everyone agrees that it shouldn’t be a lot lower. These people understood a great deal about the complexity of the body and on how everything should work together. Unfortiunatelly many others look for a simple and quick fix. They will find a temporary solution in alkalizing 'to the max', where many consider 8.0 far better than 6.4. Sure constipation will become a problem, but there are pills for that.
Please remember that the 6.4 is only perfect if the other numbers are, and lower will result in faster decrease of energy than higher pH's. Since many are acid, alkalining makes sense for some, but is considered wrong by RBTI standards nevertheless, since we look at the complete picture, not just a single number.
Still we should try to learn from every source available, even if they provide just a single value. Here is a bit of info from alkalizeforhealth.net:
Cancer patients are usually a bright yellow, a pH of 4.5, especially when terminal." The Calcium Factor: The Scientific Secret of Health and Youth, by Robert R. Barefoot and Carl J. Reich, M.D., Gilliland Printing Inc., Arkansas City, Kansas, 1996.
The above does not take swings in the SpH in acount, nor the other numbers. If it would, I believe the outcome may have been closer to the RBTI equation. Also we must take in account that the above only looks at cancer, not parasites for instance. They are know to thrive on higher pH's.
Just like pH's are about the balance of acids and alkalins, so is RBTI about balance between every number.