SoundSmith Counter Intuitive for VPI tone arms

No issues noted, use one on a 3D arm, a Classic arm and a 9 arm.

The SS CI does what it's intended to do-make fine tuning of the weight easier.

If you aren't experiencing setup issues, use the money to buy more records.

If you're setting up your tonearm/cartridge once, the c/i is not needed at all.  Sure it makes it a bit easier, but the adjustment can be done without it.

The original (thumb screw) counterweight on the VPI 3D arm is not a user friendly design. The Counter Intuitive really makes life easier here. 

From just looking at the newer Fat Boy arms, I see the counterweight has been improved upon. Looks like it's more a pressure fit design on a smooth arm surface. Much nicer!

Yes the CI works very well.  No friction problem here.  Perhaps there was a user who didn't like the normally tight fit.

Even useful, though perhaps not as essential, f you get the dual pivot which I also recommend.