My Dual Harper - Asus Z7S WS living review *56K warning*

[jcool]

will they work with dimms in slots right beside one another?

Yes, easily. No need to cut anything off, as you can remove or relocate the two tubes any way you like, plus you can nest the fins into one another so they will fit.
You'll see soon, as I have ordered another 4 gigs of these wonderful FBDimms (and I have to put them in the last 2 white slots for quadchannel to work)

If it works with OCZ Reaper, it works a 100 times easier with these (the fins aren't nearly as dense)