Renthal make end weights for their 7/8" bars too. I got a pair of those as well. There isn't much "weight" to them, but I don't seem to notice any bad vibes from the new bars. I have the CRG Hindsight LS mirrors and am happy with those (some run only one - I have both). I didn't try any other mirrors and ordered the CRG's before I even had the bike. Are you planning on drilling your bars to locate the switch pods or rather grinding off the nubs?