I've lost points by removing COs due to a drop in avg. history. You might take a small bump, but you also have some SLs and older accts that may offset that. You'll certainly look better to a lender under a manual review.
And consider also they may convert to a good account (if COs, not CAs) and stay on for an additional 3 yrs. That will give you good history and a longer age. One way to tell is to pull your EX and TU CRs from those CRAs. You'll find a drop off date. If there is no date, then the account could revert to a good account and stay on for 3 more yrs.