Chase here pulls both EXP and EQ for every app. But I froze EXP and now they're okay with just EQ.
For those in total Experian territory, I cannot more highly recommend this method:
http://boardingarea.com/rapidtravelc...of-transunion/
Amex and Citi still require the EXP unfreeze PIN to proceed, but whatever pulls you can shift to someone else certainly helps.