I have a pair of bookshelf Tannoys with bi-wire capability. I recently acquried a pair of floorstanders, so I have decided to use my bookshelfs as rear speakers. Should I bi-wire the bookshelfs ? Does anyone bi-wire rear speakers just because they can be? Is it also true that bi-wiring is more effecitve for a HI-FI setup but for HT, you won't feel the diff ??