We fished lakes all year and we generally caught 1 fish per night. Me and varmint sniper each caught one in the 40lb range and the rest were all 20's...only one thing was consistant, we never caught a flathead under 19lbs...so yes flatheads in lakes seem to be bigger and less abundant than in rivers but ide like to hear the reasoning why. Do they not reproduce as productively in lakes thus causing less fish but bigger fish? Do the smaller flatheads run a pattern in which they arent consistantly caught in lakes? Are the small flats just too small to brag about? Do people mistake them for bullheads? This topic interests me, i wish i knew the answer. What do you all think?