Sorry everyone I wasn’t getting email notifications. I have never actually seen a ! In a command but ^ was common. The dozuki has this example M558 P9 C"^zprobe.in" H5 F100 T2000.
So ^ is pull-up regardless of value and ! Is invert. Ok.
So I’m betting that 3.0 let me use I1 but I have to use ! In 3.11
Thanks.