I've been hunting the same ranch in Northern Schleicher county for more than 20 years and we regularly see 3.5 yr olds pushing 130, and 4.5 yr olds in the mid 130s. We typically kill one 140 class each year. Biggest issue we have is seeing 5.5yr old + bucks. We don't shoot anything younger than 4.5 unless it's a cull but can't say the same about the neighbors around us. While we protien feed year round, it's not enough to drastically effect antler growth.