Well, old bean - only trying to explain post#11, you know - not my checklist. I understand yours is
C
H
S
?
Maybe with a few more types 'under your belt' you will recognise the sense in having a 'standard' checklist so you don't miss that VITAL thing, like brakes in a Chipmunk, Fuel selector in xxxxx, DI at a multi-runway airport (to avoid that a w f u l feeling of lining up on the wrong runway

), Lights on in a busy circuit, maybe canopy open in a warbird, gear down in a retractable (or wheels up in an amphib), etc etc. Glad you agree with Carb Heat. Maybe there should be two F's (flap?). Who knows?
It can save a red face or worse, and I
would advocate similar if sproglet is likely to move off Cessna 150s