Primer Comparison

With all the wisdom on this forum, I know the answer is here.
What is the combustion difference between a match and a magnum primer.  I use a lot of WLP, and 
some Federal Match LP primers.  I have been told that both have similar combustion.  I have yet 
to check and see if it amounts to a few extra fps over say a std Federal LP Primer.  I like CCI's 
as well, but the casing seems a bit harder.  The CCI's are a bit more finicky when loading.  
Anyone know of a primer heat chart, or does it even matter.  Thanks in advance

http://castingstuff.com/primer_testing_reference.htm


http://www.6mmbr.com/PrimerPix.html

Just some reference stuff

That is pretty interesting info Jim.  Just what I was looking for.
I wonder where a WLP falls in that range?