I'm no expert, but sounds like whatever you're doing is working great! I'd honestly have a hard time harvesting a healthy 16 incher, but then again your lake record is bigger than mine. Do you feed the CNBG? Did your shad survive the Big Chill?

7ac 2015 CNBG RES FHM 2016 TP FLMB 2017 NLMB GSH L 2018 TP & 70 HSB PK 2019 TP RBT 2020 TFS TP 25 HSB 250 F1,L,RBT -206 2021 TFS TP GSH L,-312 2022 GSH TP CR TFS RBT -234, 2023 BG TP TFS NLMB, -160