What about the Camodel EXTRA 300L 24% (
http://www.camodel.com.ar http://www.camodel.com.ar/dealers.htm )? People in Pattern and 3D circles seem to like many of their planes.
The good thing about winters is that frozen lakes make great flying sites. In temperatures down to around -10 Celsius (10 below the freezing point) I have been coping with thin gloves.