Jon Woellhaf wrote:
The recent comments about the difficulty of setting electric pitch trim in a
Cirrus made me wonder if any electric trim systems use a design where the
trim speed is proportional to switch deflection. Are they all single speed?

As we were taught in elementary control theory: Never use proportional
control unless bang-bang doesn't work. Can't vouch for the Cirrus,
but I've never had any problem with single speed electric trim (either
in an Arrow or my Navion).