Six pack secondary paper clip test?

I just got the car back on the road after a long overdue suspension rebuild.
After doing some carb tuning, I had a suspicion that the outboards werent opening. Honestly, I never knew if they were in the last couple years cuz I didnt do this test.
I read to get it up to about 2500 rpm in 1st, then stab it to the floor. After doing this, I went out and noticed the clips were both off of the diaphragm "levers" and lying underneath in the intake valley. So, successful test right?
If so, is that what it takes to get these to open on a regular basis? Cant be right? I know it depends on the springs and the kill bleed, but dont they partially open at lower RPMs...say 4k for instance?
I guess what Im asking is if the stabbing it to the floor and getting up to 7-8k is mainly just for testing purposes to see if they are opening?
I know, kind of dumb question, but havent figured out any other way to test.
Thanks.