I used two while fishing with Barry Marrow this weekend, great backbone, with a great tip, just a bit on the heavy side,
I tried tandem rig on my BnM"s yesterday, I wasnt as happy with the tandem setup, extra weight though was only 3/8 oz. was enough to bow rod slightly, this was on a 12 foot Sam Heaton, I would definantly recomend them if thats your style of fishing, I am not sure which ones we used but plan to get a couple asap!!
DS