rafael, I'm not much of an angler, and I'm damn sure no expert on Golden Trout, but when I was hiking the Cottonwood Lakes Trail last year I ran across a couple of guys who were up there strictly to fish. As we chatted, I looked around at the lakes we were near (the lower numbered lakes) and asked how the fishing was. They just grinned and said they were pushing on to lakes 5 & 6, which is where they typically fished.
Seeing that I was not going to be poaching their territory - ever - they told me that the lower numbered lakes are where most people fish for the GTs since they're the first ones along the trail and easiest to access. Lakes 5 & 6 take a little more effort to reach, and they were definitely of the opinion that there were either more or larger GT to be had there. I also recall them saying the higher-numbered lakes had different catch/release/limits/restrictions (take your pick) than the lower-numbered lakes. I got the distinct impression these guys knew what they were doing.
For what it's worth . . .