Bill, I belonged to a fishing club in Ohio for many years that had a 22 acre lake stocked with both LMB and SMB. It was near the highest point in Ohio so the climate resembled central Michigan. And it was quite deep in most places, with some spots over 30 feet.
SMB did well for a while, though they were never as numerous as LMB. Indeed, I caught close to a 4lb SMB one time while fishing for BG with a live redworm. Spectacular fight on light tackle.
But after 5 or 6 years, SMB gradually went into decline. After about 10 years, they just about disappeared. LMB outcompeted them, plain and simple.
Don't know if this is helpful, but that was my experience.
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
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