@wannfky...what's your thoughts on not calling out MAGs Both under the pre-takeoff section. Same goes for carb heat. Obviously you tested it earlier so maybe you dont care.
Another thought. When I made my own my wife and CFI looked. One thing that was apparent was the need to separate Run-up from pre-takeoff. It was basically a simple observation especially during training. You run up once but might do 6 takeoffs during that same flight. So having the pre-takeoff section separate really worked for me. Dumb example...could care less if doors and windows shut during run-up, almost always open in hot summer. But definitely want them shut right before takeoff.
Re : Runup and mags on both/ Carb. my normal SOP for run up is to the run up at a leaned mixture and observe the EGT graph and not the RPM drop at 2000. it is so lean that if i forget to put mags on both and do a full throttle, I would instantly know. some of my check list items are also based on flow that i have been doing for last 3 years or so and some of them i verbalize and hear. I have done it for so long that if i dont hear it, i know something is missed. for example, checklist or not, after i get take off clearance i will verbalize the following, in that order:
Fuel pump on
Mixture rich
Lights on
carb heat off
flaps up
trim set
final clear
runway number match heading
before i cross the runway. thats not the time to fumble with check list. there are times when i will get a hold short. in that case my SOP is the lean the mixture, but leave everything alone and do the verbal flow again once i receive my take off clearance. door and window has historically always been locked, unless there is a CFI next to me who prefers to keep it open. once i am buckled in, i aint playing with the latch. now that may change next yr.
I have similar flow for engine start (hence called out in one line and not in details) where the original checklist doesnt make a whole lot of sense. for example, my engine start procedure in the original checklist is a 7 step process starting with Master on. well, if i forget Master On, she aint starting.
combining the run-up and pre-take off - this is something i have been thinking as well and I wont know until i fly for a while with this check list and revise as necessary. lets see some scenarios:
Flights at my home base:
Run up in the hold short area - run up and then you take off, so no need for separate pre-take off.
if i am doing touch and go or stop and go, no time for check list - go by memory items. there is always something landing behind you. in my student days i tried using the checklist on the runway during stop and go, didnt end very well.
Some other podunk airport :
in nearly every airport i have visited, run up right before take off. one exception was when we met at the fly in, i had to do the run up on the ramp
Some other towered airport:
so far, every other towered airport i have visited, run up before take off, not a separate run up pad
now all these might change based on where i go... will have to wait-see-revise