I can't add too much to this thread ... but, I will say this -
I've fished from the bank at T-ville, on several occasions during the Winter months. It's usually been during a "warming trend" ... air temps getting into the high 40's or so, for a few days running. Stood on a deep bank and cast tube jigs over a large blowdown tree, that stuck out into about 20+ ft of water (Settlers Trace area). I've caught them doing this ... anywhere from 4ft deep & right close to the bank, but in the thickest part of the tree --- to around 8ft deep & suspended out over the main branches of the tree.
As long as you can get in & out of the ramp ... and the lake hasn't frozen up much ... I think you could still catch some fish. I've even seen people breaking thru the ice, with their boats ... but, I don't know if they had any success or not, catching any fish.
One thing I can tell you about T-ville ... if you wait until late April or early May, to start your Spring Crappie fishing there ... you've missed a couple of weeks of decent fishing :rolleyes: Provided, of course, that there has been some warming periods in March ... and no heavy rains. My "best to date" catch from T-ville, came in early April ... shallow water (<5ft) around a very small snag/root wad -- limit of 15 keepers that weighed 10lbs (3/4lb avrg). And that was quite a few years ago. There are some good sized fish in there, you just have to fish it often - find their hidey holes - and fish slow. ........ luck2ya .....cp