I bought a set of these tuners to replace the G-Force system on my Les Paul Junior.
They were a perfect buy and they fitted perfectly with no enlarging the tuner holes. The only thing needing done was drilling holes for the screws which only took 5 minutes.
Performance-wise, i found these tuners absolutely perfect for their intended use, I have been using them for a while now with no problems whatsoever.
If I had any points to make, aesthetically, the peg (waffle) keys are a little darker than the usual bone effect keys but after a short while I don't even notice the difference and it does not affect the overall look in any bad way, in fact, I was more than happy with the way the headstock looks so much tidier and smart with traditional tuners rather than the large plastic block that was the G-force system.