Good info. Thanks.One of the greatest misnomers in trout fishing is the use of the term "German Brown." Unless you're fishing in Germany, the chances of the fish having the genetics of a German Brown are small. Most brown trout in the USA are mutts with a mixture of genetics from German, Scottish, English and Irish fish. Lewis Lake in Yellowstone has a fairly pure strain of Loch Leven Browns from Scotland and, if I recall correctly, they lack any red spotting. Rainbow trout have a similar hodgepodge of genetics in the USA.
Here's an interesting article about Brown Trout in the USA- http://thefrogwater.com/2013/06/01/brown-trout-subspecies-in-the-u-s/