Even with this, since I don't know how those account ages are distributed, I'm too chicken to predict. If you have a bunch of other accounts that are 9-12 years old, you might be OK. I think you're going to drop for a while, because I think your AAoA will drop.
If you're good with Excel, or if you're a grumpy old fart like me that calculates on the backs of old envelopes, you can try working out what your AAoA will become. Calculate the age of every account showing, except the CFL's, and express in months (so 40m rather than 3y 4m), and add all the ages up. Divide by the number of accounts (I think I'm figuring this right --I'm distracted by the post-mortem on the Tenn-Aurubn game.
) If you did not include the accounts going bye-bye, the result will be your new AAoA.
Nevertheless, any drop would be temporary. Clean reports X3, with everything getting older and better every month? --scores will be back.
One possibility: you can use the FICO score estimator and enter the current info from one report (only one report's worth of inqs), and note the projected scores. Go back and do the same, with the same report, less the accounts that will fall off, and see if there are different scores.
FICO Score Estimator
* Credit is a wonderful servant, but a terrible master. * Who's the boss --you or your credit?
FICO's: EQ 781 - TU 793 - EX 779 (from PSECU) - Done credit hunting; having fun with credit gardening. - EQ 590 on 5/14/2007