⟨Kerbinator(no guarantee suggest)⟩ Then, to execute, firstly use "show on navball" and use stock SAS to point to there
(MJ is useless and will wobbling when pointing Principia's fake stock nodes)
please wait until ignition T-0.0s and start your burn
(only for stock; in RO the engine spool-up time doesn't count so you need to start *before* 0.0s depending on your engine)
When burning, if you want to avoid lags, switch to flight view.
When there's only a few second left, switch back to map view
If your engine can throttle, just throttle down (the manoeurve's end, the navball will instantly vanish
so just hold your stability assist) and watch that your pink prediction line is the same as the white dotted flight plan line
(in RO because of limitations in your engine, cutoff may be imprecise; then use RCS to take the burn finalization over)