I found the issue. The time between pickpocketing setting pertains only to stealing from normal npcs like guards, master farmers etc. I added in a method the other day for adjusting the sleep time for blackjacking and I never pushed the update. I pushed it just now, you will be able to adjust blackjacking sleep time from the main page of the gui when the update is live. Sorry for the confusion!
I do not intend to make blackjacking fully afkable at this time, to do so would require too much of a time investment, which I unfortunately do not have right now, to perfect luring.
Sure, you both have trials now.