In the past week I added 800 ibls from a blog site (ranked 4th) with pr5 pr4 and pr3 pages to one of my sites and google is yet to recognise change in an allinanchor search. Also one of the top hubs in the same area of search withdrew their site 3 days ago (410 gone). It's listing in google hasn't budged (ranked 6 out of 3.5million).
Google appears slow, but not when compared to the others. Patience... patience... I keep reminding myself.
you'll usually need to wait roughly a month for the new IBLs start counting. the week before the visible update happens, there's usually a large change in the serps.
Google is smart enought to indexed yuor site , so all you need to do is submit your site to different directories and have patience