I do a little, on a G20 third generation...it's VERY nice, and I highly recommend. Great packaging and instructions, too, use their recommended ammo.
Not as nice as the highest-end Marvel on a 1911, but definitely up there.
To kill something as great as a duck just to smell the gunpowder is a crime against nature. - Alan Liere
Democracy is a device that ensures we shall be governed no better than we deserve. - George Bernard Shaw