I actually haven’t fished there in a few years, but when the lake filled up in the 80’s, around Johnny Walker bay we caught some huge green carp. Walker bay is just west of Maclin bay. I am not sure if you can get back there with a boat now, but it was jam packed with crappie, LMB back in the day.
People were going way up west catching them in the holes back in the willows earlier, but I haven’t talked to anyone lately.
If you want to know about LMB out west you should get a hold of Kayakjack on the Ne game and fish forum. If it is green carp out west, he knows about it.