This is what the regs say,illegal to fish with more than two lines or poles in an impoundment stocked with trout by the DNR,from jan-1st,to may 31st.
Laymens terms,any impoundment ( pond or lake ) that the DNR stocks with trout,only permits two poles or lines in the water,period!from January,through may.Regardless what you are fishing for ( gill,crappie,cats ext),once you hit June you may use more poles/ lines,but really,if the fish are hitting,two poles/ lines might keep you busy.