I'm just looking into making a few parts (in my usual sloooow pace) and I'm considering core materials.  I appreciate the convenience of soric however I'm looking for your opinions on ultimate weight minimisation.  I cant really use honeycombs as I have a single mould so please restrict it to common cores.  I'm looking for a comparison between thinks like soric, balsa, foam etc as to what is ultimately the lightest moulding.  I appreciate the extra labour with foam of infuse/bond/infuse but its just for myself.  My suspiscion is it will be foam, soric, balsa in order but I'm happy to be corrected.

Thanks y'all