Under current rules you could copen a Sapphire Reserve, Sapphire Preferred or INK Preferred, Combine the points, and have the ability to transfer to airline and hotel partners. The risk is that Chase "could" change the rules for Combining points.
Paying the annual fee on the CSP (i.e. downgrading the CSR rather than moving the points to my Freedom and cancelling) and giving up the ability to get a sign-up bonus later in the year seems like expensive insurance against that. Thanks for the help!