The percentage is very high in my area. Guys get to know of your reputation for finding and catching fish and watch where you’re fishing, then mark the spot where they saw you. With the electronics we have now, it doesn’t take them long to pinpoint that exact spot. They’ll come back and fish it every time they visit the lake. They bring their buddy then their buddy brings his buddy and the spot turns into a community hole. A really good fisherman will still visit this spot, catch as many as he can, then know when it’s time to move on to a new spot. They will have numerous spots marked that have produced at different times of the year and visit many of them a day. A seasoned fisherman will know not to sit in one spot too long. Numerous reasons for that. Just remember that you’re not the only one fishing that spot anymore and take what it gives and move on.