It looks like the entirety of my review of a used Ruger P89 is online now, if you would like to read it.
"Normally, complaints about high-bore axis are overblown. For most shooters, the effect of the bore axis height on Pistol A versus Pistol B in split times is lost in the statistical noise. Not the Ruger, though. The slide is a massive casting, and the shape of the backstrap ensures that said massive casting is positioned well above your grip. As it slams back and forth under recoil, you notice it; it’s like shooting a Shake Weight."