Hi Paul, welcome! Raymarine X5 seems to be most popular and cost effective choice. Now, it's under an iteration with auto calibrate and reportedly with some more gyro data and self learning, though I don't know any express who has it yet.

ST2000 Plus can handle the basic stuff, but the X5 has a gyro which I appreciate going downwind off ocean waves.

JB

:: New owner here of Express 1986 #115 which is currently
:: in Maine and coming to RI next week. It will be in RI
:: sailing shorthanded.
::
:: I have had a few singlehanded boats that were NKE gyro
:: pilots that worked pretty well. I did have a Raymarine
:: on my Antrim 27 that was only compass heading.
::
:: I am shopping for a pilot to install on my Express 27
:: but can't spend the NKE dollars.
::
:: What are the singlehanded racers using with their E27's?