Two things:
1) Like Al says, dropdowns are definitely still happenning
2) There are actually players in the DII search now that are worth recruiting for elite level DII teams, which is something that had not happened for a long time
Also, I've found that you can basically disregard what you've been using in regards to DI player rankings when it comes to pulldowns/dropdowns. The bottom level DI players are worse now, so as a DII coach you can shoot higher than before. I could have signed a 97th ranked freshmen SF at an A+ DII school, but decided not to sign a SF.