Increasing Compression Questions

["John & Allison Cyganowski" <janah@att.net>]

Hi All-

It would appear from the discussion that the most common way to raise 
compression on the TR6 engine is to shave the head. Does this not in fact 
reduce the volume of the combustion chamber?  Is this a good thing?  Are 
pistons made with lower pivot / wrist pin points?  Would this not increase 
sompression without reducing the volume of the the combustion chamber?

Thanks,
John Cyg.