The lake I fish is a 3500 acre lake that is 7' low too and the best luck I have been having is fishing my winter holes which are about 10-15 feet deep. I normally fish tubes injected with crappie nibbles but lately have been using some 3"-4" kalin twister tails that I got at a salvage store and having most of my bites on them. I cut 3 rings off the front and about 1/2" off the tail and split it otherwise they seem to be short striking, same temps. Don't know if it will work on your lake but I'm catching enough to make it worth while. Thankfully I only live 2 1/2 miles from the lake.
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