Walt it is not uncommon for ponds north of the I-40 corridor to have TShad winter kills about once every 5 years or so. Sometimes only a partial kill but sometimes all. That is a lot of money down the drain if it occurs. We even have them occasionally 100 miles south of that.
Bodock has a valid point to consider all options. I would not suggest it because of the cost. Sometimes it can take years to manage through a LMB crowded pond.