We forgot to add that the super dome is another difference.
On another note, comparing the Big Crown with the Small Crown no crownguards is also a terrific game.
The 6538 has the same case dimensions than the 5508, AFAIK. It is just thicker. And it has the super dome plexy. A totally diffferent character.
I would personally favour the 5508 versus the 5512 / 13.
Now, between the 6538 / 5510 / 7922 / 7924 versus the 5508 / 6204 / 6205 / 6536... I would go for the big crown.
Tough game!
Best, Bill.
Nicolas