Then again, a Piper Arrow generally won't do so either (all the Arrows I
find have had a fairly pronounced and slow phugoid oscillation. In fact,
I find the Beech Bonanza a lot less work to fly IFR than an Arrow
because the Bonana flies better hands-off).

Then again, the Bonanza has a side-side tail wiggle that other airplanes
do not. And nothing short of a yaw damper will stop it.