How long does it normally take, to get the first of the two tiers indexed?
I made a test with a random 50 sites of the 1000 links and none of them have been indexed so far after three days.
Another random sample of 50 sites of the second tier diverse links showed only 12 of 50 indexed.
I will wait a bit more, but maybe it was better, if the second tier concentrated on sites with a lower number of OBLs. I checked for example one site, and it had 6500 comments... there will be hardly any link juice coming from this IMO...
I have to say, the quality of the spun articles on the first tier is better than expected.

But maybe it would be better to have less tier 1 sites to improve the ratio of links coming from the second tier to the amount of first tier sites - especially if the second tiers are of low quality.