Unless it's been established that the population is truly stunted, which by the way is easy to see after you've caught some, I'd go by the rumor that bigs are in there. I wouldn't pay too much mind to what the tournament results were. There are plenty of factors at play to have led to those results. Aside from that, you can't know of every stealthy guy out there quietly finding them. There's probably more than a few. There's always some. Do you want to be one of those guys?
You need to go by your gut and use your senses. Uncorking a lake is a long game, even if that's only 2 days a week. But you've got to want to do it. If that's where your head is at and you like a challenge, you will figure things out if you don't look at it as a race. However, if you get spun out by failure instead of it fueling your drive, this isn't the angle for you. Personally, I get bored quickly fishing at honey holes. We have them around, but I rarely go. My buddy will hit them now again for what he calls a "mental health" day, and I get it. But throwing a wacky worm for 25 fish doesn't excite me in the least. Been there, done that, and I'd rather swim in the ocean than splash around in a kiddy pool.
By the way, if I had gone by what everyone I'd encountered said about The lake of Tears instead of following my gut I wouldn't have pulled a pretty good stringer of big fish out of it. Regardless of what I'd heard, or who it was who told me, I just knew they were in there, and with that belief, I made a mission of it and found them. Once again, this is something that's got to be for you. You need to be built for it.
Circling back to the tournament results. Over time, I've networked a little bit. By doing well by the standards of this area, I've been connected with others who have too, and from one end of the island to the other. These guys are bonified big fish catchers. They crush it. They know what they're doing. Some have popped out to this lake with me for a session or two, but none have found the juice. Maybe a 4 pounder. That's simply not enough time. Even if you don't suck at this, and even if you're pretty good at it, it takes time to process information, especially in places where they're not jumping on your hook.