Oh, fer christ's sake...
Line up
Firewall it
Go
How bloody complicated do you people want to make this???? A checklist for taking the active? What next, a checklist for rotate, then a checklist for leveling off, followed by a checklist for...whatever...
If you're stopped on the active to do a checklist you're wasting everyones' time. If you don't have your stuff in one sock BEFORE you occupy the active runway, you need to rethink your departure process. You should cross the hold line ready to execute an immediate rolling departure. Anything else is pedantry and hogging the runway uneccessarily.
Pitts2112