first i am not asking if i should upgrade to a certain "brand" of speaker wire or anything of that sort, but i am asking for opinions on the wire size. right now i have my rear surround speakers wired up with 16ga wire. these speakers set about 20ft away from the receiver and with vertical allowances and such, total cable length is about 26ft or so. do you think that going up to 12ga will be of much benefit? this is used for HT only.