I bought some unassembled wood frames the other day and some black plastic Pierco foundation for them. The guy gave me wedge top bar and not groove top bar. Wedge is for wax right? Would it work or be OK to simply stuff the plastic in and ignore the fact I have wedge? Seems like that is an accident waiting to happen. Ill get the right stuff but still wondered, if I were in a bind, would this work. ??