I think you'll find that the critical cg for the in-air demonstrations is aft cg.
And I've never heard of a one second time delay in the dynamic VMCA/L manoeuvres, nor does AC25-7A recommend or require such a thing. It would be inconsistent with the Vmcg demonstration requirements, where that is also a dynamic manoeuvre and a one second delay would be horrendous.
Also be careful about attemting to define specific test conditions or requirement, such as the rudder force value. Those are subject to variation with the specific regs in force at any time ...