Eastland , it's rather obvious that you have beeen AWOL from this forum the past few months, since this subject has been explored endlessly
There seems to be a consensus among forum members and supported by the literature, that catch and release fishing pressure, with a good forage base and supplemental feeding, results in hard to catch LMB.
You are correct in using various lures that you describe, that most are familiar with, LMB get lure shy very quickly.
