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I ran both the old MD5 plus a longword call count generator and the new one based on Arc5 I posted last week through Maurer's statistical test. I used my Java translation of David Honig's <honig@sprynet.com> implementation of Ueli M Maurer's "Universal Statistical Test for Random Bit Generators". Thanks for posting it David.
I ran the tests with continuous seeding turned on and with it turned off. All tests ran for the maximum 66,191,360 samples. Here are the results.
MD5 generator w/continuous seeding
c:\tmp>java Ueli
UELI 5 October 1998
L=16 65536 66191360
Init done
fTU=15.167591716444672
Expected value for L=16 is 15.167379
MD5 generator wout/continuous seeding
[d:\tmp\classes]java Ueli
UELI 5 October 1998
L=16 65536 66191360
Init done
fTU=15.1671991451527
Expected value for L=16 is 15.167379
Arc5 generator w/continuous seeding
[d:\tmp\classes]java Ueli
UELI 5 October 1998
L=16 65536 66191360
Init done
fTU=15.16759015541331
Expected value for L=16 is 15.167379
Arc5 generator wout/continuous seeding
[d:\tmp\classes]java Ueli
UELI 5 October 1998
L=16 65536 66191360
Init done
fTU=15.16712374546807
Expected value for L=16 is 15.167379
I don't see a lot of meaningful difference in these results.