The key word for 2A IS variation. And the one sentence that describes them is “Everything works, but nothing works for long”.
Of all the neuro types they need the most variation.
Variation within the session (neural stimulation and muscular stimulation in every session).
Variation within the week (the workouts should not be all of the same type/structure in the week… for example the Conjugate/Westside system is a good example of workouts having a different structure with dynamic and max effort days).
Variation from week to week (not the whole program but something need to change… 1-3 exercises, training method on one or a few exercises, order of movements, etc.)
Variation from block to block with each block lasting 3 weeks.
In fact the conjugate system is a great example of a good Type 2A program, maybe with the difference of ramping to a 3RM instead of a 1RM.