Since Mission Canada still had inventory of last year's M52 towers, I'm getting a swingin' hot deal on a pair, significantly less than I would get the new V62 for. It's literally an offer I can not refuse, especially since I've had my old PSB500's for almost eight years! In any event, Most Mission speakers are designed so that you can sand weight them. How old school can you get!? My question to you happy Mission onwers is this: How many of you have weighted them, and what are your opinions on the performance effects of doing or not doing so?