I caught a 10lb Mackinaw at Jenny Lake, Grand Tetons, Wyoming in 1962 when I was 10 years old on 8lb test. My mom baked thick filets and we fed our family of 5 and 8 other guests. The largest trout I caught when I was a kid. My dad was a NPS Ranger. We lived in a 3 room log cabin on Cottonwood Creek / Lupine Meadows.. No electricity / with outhouse. 😁 Every morning I would catch Cutthroat Trout out of Conttonwood Creek for my 2 brother's breakfast with mom's sourdough pancakes and scambled eggs prepared on the wood burning stove.